Totally agree with the OP, I was going to feedback on this too. I do love the strategy of moving single characters but the default auto-run of a sub group is not working.
E.G I move a character to jump an obstacle - then the other start running around and trigger enemies!
Also when moving a party of four, if you need to jump make it so they then all follow suit and jump the same way. Currently you have to break up the group, then individually jump then rejoin them = very fiddly and tedious.