Djaron: Hello

Without spoiling any element of the story, at one point you have a group that can be used to play some "optional missions" (labelled in blue on the map) but i could not find any way to access "group management" for those characters during this step

which means i cant change their deck (maybe it was intended), it reverted the character i already knew to a default deck (maybe intended but frustrating) and i can't access to their dice inventory or such.

Is there any possibility to manage this alternate group ? or am i stuck to default setting for them for every optional missions ?

Thanks in advance