Is this possible to populate a form with a data from Insightly CRM

We also use - Insightly CRM and would like to have pulled in selective content from Insightly into our forms

Unfortunately, this feature is not available and it is not possible to read data from external sources. But if your data is already there in your submissions it is allowed to read and edit them. Please take a look at the following guide that might be helpful to you.

http://www.jotform.com/help/40-How-to-Let-Users-Update-Their-Form-Submissions-at-a-Later-Date 

Please get back to us if you have any other questions. We will be happy to help.