Prior Year Adjustment Movement in Fixed Assets form

Hello,
We have a requirement in the Fixed Assets form wherein the client is looking for an additional Adjustment column for "Prior Year Adjustment" (essentially P13 adjustments for prior year) in addition to the existing OOTB "Opening Balance Adjustment" movement to get to the "Opening NBV Balance" for the current year as follows:

Currently the movement dimension restricts adding any child under the "TRCS_OpeningRevamped" parent member.

Any suggestions for the same?