The solution is not simple.
The purpose of F1-MAPEXPL zone is to display information using "Display Maps" only.
It cannot handle Maintenance UI Maps (like the one you created).
so, you have to create 2 UI Maps for a BO, (1 Display and 1 Maintenance UI Map).
You include Display UI Map in F1-MAPEXPL zone.
When you click edit in Display UI Map, It invokes a Maintenace BPA script that invokes the Maintenance UI Map.
You update data in Maintenance UI map and click save (invoking submitMap which returns the data to BPA script).
The BPA script takes care of updating the information (eg: using BO update)
and the updated value gets refereshed in the F1-MAPEXPL (display) zone.
you can refer to following BO : C1-AdjustmentApprovalProfile for more information.
Display Map : C1-AdjustmentAProfDisplay
Maintenance Map: C1-AdjustmentAProfAddUpdate
Mavigation : Admin -> A -> Approval Profile (broadcast any approval profile and examine the display zone which invokes the BPA script on edit button click)