Expense Report Project/ Task LOV

Hi

I have below questions in IExpenses - Expense Report. Can you please help:

1. How can I remove Project Allocations/ Account Allocations tabs on an Expense report? We want this removed as we expect users to select project/ Task only. They should not have access to Account Allocations.

2. Please help me understand why Project and Task LOVs are enabled for some expense types and disabled for other. We need users to select Project/ Task for all expense types.

       Its bit tricky as both 'Parking' and 'Airfare' are assigned with 'Travel' Project Expenditure Type in Expense Report template. Project Task LOV is enabled for Parking where as its disabled for Airfare.