You can set up your parent application by following the below help guide URLs.
HYPERLINK "https://communityforce.zendesk.com/hc/en-us/articles/360042672192-Assign-Unassign-Funding-to-Your-Parent-Application" Manage Common Application Grants - Mark Child(ren) Application as Submitted Setting – CommunityForce (zendesk.com)
HYPERLINK "https://communityforce.zendesk.com/hc/en-us/articles/360043116031-Mark-Child-ren-Application-as-Submitted-Setting" Manage Common Application Grants - Set the Select Eligible Funding Instructions – CommunityForce (zendesk.com)
HYPERLINK "https://communityforce.zendesk.com/hc/en-us/articles/360042672072-Set-the-Select-Eligible-Funding-Instructions"Manage Funds Criteria Information - View Matched Applicants in the Funds Criteria Report – CommunityForce (zendesk.com)
HYPERLINK "https://communityforce.zendesk.com/hc/en-us/articles/360042671992-View-Matched-Applicants-in-the-Funds-Criteria-Report"Manage Funds Criteria Information - How to Set Fund Criteria for an Application – CommunityForce (zendesk.com)
HYPERLINK "https://communityforce.zendesk.com/hc/en-us/articles/360042671932-How-to-Set-Fund-Criteria-for-an-Application" Note: The question/section XML names and types should be the same in all the applications (parent-child) in order to flow the data from parent application to child applications.