To manage group in Investwell 

Go to Setup menu

Click on Manage Group

After Clicking on manage group the box will appears 

Here you have the Exiting group option the group you have already made 

And the other option is of new group where you will create the new group

when you are creating new group in select a group give the name of group leader and then click on Enter button

It will show the group leader and then click on add applicants to add group where you need to search the name of applicant you want to in group and then it will show you the list of the applicant and you will see the add button click on that button to add the applicant and automatic it will create the group