First, let me start by saying I LOVE this Lua. It offers everything I was looking for in an all-in-one boxing program. The only thing I found to be a minor inconvenience is that manual mode does not disengage the target stick. This gets to be a problem for missions like Candle, where even burns on multiple mobs are necessary for certain achievements. To explain further, when the split happens, if you try to engage another target in manual mode, it automatically goes back to its original target. I am aware that there is a feature to turn off stick, but if it could be put into manual mode, it would make for a better ease of use for quickly turning all the features on/off that actually gives complete manual mode, save the combat system. Actually, this could only be set up for tank classes and would probably be well received by a lot of us. I'll close by saying this is merely a request for improvement, and I am more than satisfied with the Lua as is and can continue to just go through the settings to tweak things as needed if this is not something deemed an improvement. Keep up the good work with this, and I look forward to all you guys have done and will do with this Lua.
Ctatum
For clarity, I don't think you are talking about /stick when you say stick. I think you want to stop autotarget selection? Not 100% sure... but that is just a setting you have control of.
To be clear, we are happy with our current implementation of the manual setting, which is just a combination of a few other settings, really.
You can also just include the setting you want to change in whatever hotkey you use and customize things to your liking.
If you don't care to disable the autotargeting, however, you should probably look at the force target window, which allows you to override the automatically selected target whenever you need.
Mine has completely replaced my xtarget window.

Here is an example of my FT window. Note I am ignoring the undead goblins (they respawn when you kill them), so the autotarget algorithm will not select them.
I am currently targeting the goblin servant, because while Golbi is a named, I've adjusted my target scan to prefer non-named and choose them first (for clearing adds, generally).
If I clicked on one of those, or their forcetarget block, they would become the new autotarget post-haste, until I cleared it, forcetargeted something else, or it died.
I quite regularly complete complex fights using 6-18 PCs using RGMercs, and most of them, I do on the fly using tools like these.
Edit: The target scan preferences also let you do things like prefer higher HP% mobs (for balancing fights), etc... all of this stuff is worth looking into.