Need to explain, that any expenses registered with employee or FA (insurance or maintenance invoice received as example, it is required GL account with proper section) can be allocated by projects based on time card data.

Settings.

• Period to select when expense happened. 
• Fill by expense item to select expense type.

Source 

• will show registered expenses from selected period by list of expense items.

Allocation

• Allocation source
• Allocation results
• Fill and Allocate button.
• Allocate by time cards.