Hmm that looks like more things will be doable than I though there would be.
I definitely would love a mod that simply adds the "Delay" action from D&D3 to BG3.
Delay simply moves the current character one step lower the initiative queue, thus allowing to group characters of a party such that they can coordinate their actions.
Once you can take the Alert feat at level 4 this is far less important, but in the early game its a PITA because it makes a huge difference.