Update WO Ressource

Hi,

We run SAP 10 SP2505 with BEAS 2025H04.00.08 (with APS licences) and also B1Up.

In order to have an accurate quantity planned to be receipt at dedicated date, we have split position to day, meaning position 423 is the planned quantity for April (4) the 23th.

We have Group Ressources used for planification purpose in BEAS.
By default, each WO is planned with de ressource group code (AvantCorps) but we want to use a certain Ressource (for instance on WO 4003101 I would use Ressource BY1110 for every positions (100 positions) 

As I've several positions, I would like to mass change the ressource used, for instance WO 4003101 should only use ressouce BY1110 (at first try, then in a close future I would like to use APS calculation for optimization)

Is a script the only option I've have to do so? Or a BEAS standard way to do it I don't know? 

I've try DIH but seems BEAS_FTAPL is not in the list.

Also considering B1Up solution for this?

BR