Yes, you can use any other account ledger for "other charges" in purchase transaction. Use the following steps
- Main Menu > Purchase Management > Transaction > Purchase Invoice (P> T> P)
- Alt + O (option)
- Go to Other Charges field.
- Alt + L (list)
- Select an Account from the list
- Save.

Note: This Procedure can be used in Purchase, Purchase Return, Sale, Sale Return.
For more detail please visit: http://www.rancelab.com/help/fr6_purchase_transaction_option.htm