The "Top Articles by Topic" standard component allows for 3 columns of data. I only need one column. When I delete the other two, the remaining data is all Left-Justified with no column. Is there a way for me to edit this or do I need to create a new component. Or, is there a way for me to see the code so that I can copy/customize with LDS? Just wondering the best way to tackle this one.

This Trigger will send an email alert when an account has 8 cases created within 7 days.  Depending on the status of `cl.Parent_Project_if_applicable__r.Implementation_status__c`
The destination of that email will go one of two places.

In the Else block, I am assigning the value `clientEmail` which is only one email address not a List.  I am receiving the error:  

`Line: 66, Column: 9
Illegal assignment from String to List<String>`

HOw do I assign the value to the `mail.toAddresses`?
 

String messageToSend;
   				List<String> ListOfMessages = new List<String>();
   		     	Set<Id> AcctIds = new Set<Id>();
				List<String> clientEmail;
				List<String> emailAdds = getAddresses();

List<AggregateResult> AggregateResultList = [SELECT AccountId, Account.Name name, COUNT(Id) co
                                             FROM Case
                                             WHERE CreatedDate = LAST_N_DAYS:8
                                             GROUP BY AccountId, Account.Name
                                             HAVING COUNT(Id)  = 7];
    		 
            Map<Id, String> accountIdEmailmessageMap = new Map<Id, String>();
            
				for(AggregateResult aggr: AggregateResultList){
                String messageToSend = 'Account name: ' + aggr.get('name') +
                    ' has ' + (Integer)aggr.get('co') +
                    ' cases opened in the last 8 days.';
                Id accId = (Id)aggr.get('AccountId');
                accountIdEmailmessageMap.put(accId,messageToSend);
                AcctIds.add(accId); 
            }
            
			
List<Case> caseList = [SELECT Id, AccountId, Account.Name,Parent_Project_if_applicable__r.Implementation_status__c,
                       Parent_Project_if_applicable__r.PM_Implementation_Status__c, 
                       Parent_Project_if_applicable__r.RCM_Implementation_Status__c,
                       Parent_Project_if_applicable__r.Client_Advisor_Email__c
                       FROM Case
                       WHERE AccountId IN :AcctIds];

  

for(Case cl:caseList){ 
   
    
    String clientEmail = cl.Parent_Project_if_applicable__r.Client_Advisor_Email__c;
   
    if(cl.Parent_Project_if_applicable__r.Implementation_status__c == 'Live - Closed Project'){    
        //Private method *** getAddresses() *** retrieves email address from Customer_Success_Managers Public Group
			String messageBody = accountIdEmailmessageMap.get(cl.AccountId);
        
        Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
		mail.setToAddresses(emailAdds);
		mail.setSenderDisplayName('IT Support'); 
        mail.Subject = 'Multiple cases created alert message';
        mail.setPlainTextBody(messageBody);
        
        Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });

        
        System.debug('Imp ' + cl.Parent_Project_if_applicable__r.Implementation_status__c +
                     ' PM ' + cl.Parent_Project_if_applicable__r.PM_Implementation_Status__c + 
                      ' RCM ' + cl.Parent_Project_If_Applicable__r.RCM_Implementation_Status__c +
                       ' Email ' + cl.Parent_Project_If_Applicable__r.Client_Advisor_Email__c);
          
    }
    else{  
             
      Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
	   // mail.SenderDisplayName('Salesforce Support');
        mail.toAddresses = clientEmail;
        mail.Subject = 'Subject Test Message';
        mail.setPlainTextBody(messageToSend);
        
        Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail }); 
        
       // System.debug('in the loop: ' + messageToSend);
         
    }

    //	message.Subject = 'Subject Test Message';
    //    message.PlainTextBody = 'Account name: ' + cl.get('name') + ' has ' + (Integer)cl.get('co') + ' cases opened in the last 8 days.';
    //    Messaging.SingleEmailMessage[] messages =   new List<Messaging.SingleEmailMessage> {message};
    //    Messaging.SendEmailResult[] results = Messaging.sendEmail(messages);
}


private List<String> getAddresses(){
    List<User> UserList =
        [SELECT id, name, email
         FROM User 
         WHERE id 
         IN (SELECT userorgroupid 
             FROM groupmember
             WHERE group.name = 'Customer Success Managers')];
    
    List<String> emailString = new List<String>();
    
    for(User u: UserList){
        emailstring.add(u.email);
    }   
    return (emailString);
    //System.debug(emailString);
}

 

This Trigger will send an email alert when an account has 8 cases created within 7 days.  Depending on the status of `cl.Parent_Project_if_applicable__r.Implementation_status__c`
The destination of that email will go one of two places.

In the Else block, I am assigning the value `clientEmail` which is only one email address not a List.  I am receiving the error:  

`Line: 66, Column: 9
Illegal assignment from String to List<String>`

HOw do I assign the value to the `mail.toAddresses`?
 

String messageToSend;
   				List<String> ListOfMessages = new List<String>();
   		     	Set<Id> AcctIds = new Set<Id>();
				List<String> clientEmail;
				List<String> emailAdds = getAddresses();

List<AggregateResult> AggregateResultList = [SELECT AccountId, Account.Name name, COUNT(Id) co
                                             FROM Case
                                             WHERE CreatedDate = LAST_N_DAYS:8
                                             GROUP BY AccountId, Account.Name
                                             HAVING COUNT(Id)  = 7];
    		 
            Map<Id, String> accountIdEmailmessageMap = new Map<Id, String>();
            
				for(AggregateResult aggr: AggregateResultList){
                String messageToSend = 'Account name: ' + aggr.get('name') +
                    ' has ' + (Integer)aggr.get('co') +
                    ' cases opened in the last 8 days.';
                Id accId = (Id)aggr.get('AccountId');
                accountIdEmailmessageMap.put(accId,messageToSend);
                AcctIds.add(accId); 
            }
            
			
List<Case> caseList = [SELECT Id, AccountId, Account.Name,Parent_Project_if_applicable__r.Implementation_status__c,
                       Parent_Project_if_applicable__r.PM_Implementation_Status__c, 
                       Parent_Project_if_applicable__r.RCM_Implementation_Status__c,
                       Parent_Project_if_applicable__r.Client_Advisor_Email__c
                       FROM Case
                       WHERE AccountId IN :AcctIds];

  

for(Case cl:caseList){ 
   
    
    String clientEmail = cl.Parent_Project_if_applicable__r.Client_Advisor_Email__c;
   
    if(cl.Parent_Project_if_applicable__r.Implementation_status__c == 'Live - Closed Project'){    
        //Private method *** getAddresses() *** retrieves email address from Customer_Success_Managers Public Group
			String messageBody = accountIdEmailmessageMap.get(cl.AccountId);
        
        Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
		mail.setToAddresses(emailAdds);
		mail.setSenderDisplayName('IT Support'); 
        mail.Subject = 'Multiple cases created alert message';
        mail.setPlainTextBody(messageBody);
        
        Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });

        
        System.debug('Imp ' + cl.Parent_Project_if_applicable__r.Implementation_status__c +
                     ' PM ' + cl.Parent_Project_if_applicable__r.PM_Implementation_Status__c + 
                      ' RCM ' + cl.Parent_Project_If_Applicable__r.RCM_Implementation_Status__c +
                       ' Email ' + cl.Parent_Project_If_Applicable__r.Client_Advisor_Email__c);
          
    }
    else{  
             
      Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
	   // mail.SenderDisplayName('Salesforce Support');
        mail.toAddresses = clientEmail;
        mail.Subject = 'Subject Test Message';
        mail.setPlainTextBody(messageToSend);
        
        Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail }); 
        
       // System.debug('in the loop: ' + messageToSend);
         
    }

    //	message.Subject = 'Subject Test Message';
    //    message.PlainTextBody = 'Account name: ' + cl.get('name') + ' has ' + (Integer)cl.get('co') + ' cases opened in the last 8 days.';
    //    Messaging.SingleEmailMessage[] messages =   new List<Messaging.SingleEmailMessage> {message};
    //    Messaging.SendEmailResult[] results = Messaging.sendEmail(messages);
}


private List<String> getAddresses(){
    List<User> UserList =
        [SELECT id, name, email
         FROM User 
         WHERE id 
         IN (SELECT userorgroupid 
             FROM groupmember
             WHERE group.name = 'Customer Success Managers')];
    
    List<String> emailString = new List<String>();
    
    for(User u: UserList){
        emailstring.add(u.email);
    }   
    return (emailString);
    //System.debug(emailString);
}