My apologies if this was mentioned before, but would it be possible the implement a feature that let's you select specific raidmembers and display those in a specific order in a seperate column (displayed in a similar fashion to MT function that already exists).
As a druid, I use 1-5 to fire macros that put lifebloom on people and I monitor my stacks via grid. To match these two things visibly, I usually assign each hotkey to a person by the order in which they appear on the Grid, but obviously, this can change often and is not under my own control. If I could just configure a bar of grid player manually, that would be really awesome. Even something like being able to select Raid 25 /w oRA2 PlayerTargets would be a huge improvement for me.