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Ajay Patel 12Ajay Patel 12 

I am not able to install field service lightning manage package in my development org, on setting I see Enable Work order Option

SandhyaSandhya (Salesforce Developers) 
Hi,

Refer below link and select production and provide developer edition credentials.

https://help.salesforce.com/articleView?id=pfs_install.htm&type=5
 
If this does not help you, post the error you are getting so that I can help you further.

Please mark it as solved if my reply was helpful. It will make it available for other as the proper solution.
                                             
Best Regards
Sandhya