How to edit join field

Hello
I have a project with datasources under postgis which works perfectly with QfiledCloud (great job!) but I want to go further now.
I would like to update a foreign table A which comes from Mysql (by a Foreign Data Wrapper) and linked to a geographical layer B. It works under QGis with fields linked and edition mode on both geographical (B) and FDW (A) layers. Under qfield, I manage to update and synchronize with postgis (and therefore mysql!) the FDW table A when I display its records directly from the layers menu (it’s already a good thing !).
But how can I do that after selecting the record (polygon) on the map ?
I see the geographic layer B with it’s joined fields (from FDW table A) but impossible to get it in edition mode…
A button in the layer’s B form (QML widget ?) to open the related form of FDW layer A in edition mode would be enough.
THANKS

guen


Imported from GitHub discussion by @guenlm on 2023-03-09T07:18:44Z

nobody can help me…? please…
guen


Imported from GitHub comment by @guenlm on 2023-03-21T22:03:34Z