We're having trouble with the "Extending Reports using the AppExchange" module in Trailhead

We keep getting the same error when checking the challenge at the end of the module:

Challenge not yet complete... here's what's wrong: 
The 'LEAD Trend by Source' dashboard component does not have the wedges set to 'Lead Source'.

Wedges ARE set to 'Lead Source', did anybody get this error message? do you know what the solution may be? Thank you!

Hi,

I need to put a custom related list on the account detail page and put the Hover link on the top of the page for the custom related list.

 

I was able to do the custom related list displayed on the bottom of the Account detail page wiring a standard controller extension and visula force page.

 

Now the problem is How do I place the Hover link on the top of the page for the custom list? I saw couple of threads for the above, but the hover links issue was never discussed?.

 

Can any one please guide me how can I do this.

 

Thank you.