Combo Action Button

[Gemina]

If a weave or double weave is really good or mandatory, wouldn't that mean it should become part of a combo aka the core of your rotation and not a may be good or useless to use ogcd?

Weaving might be mandatory for optimal play, but the ogcd skill that is being used is not per say. The ogcd you use if more than one is available should be the one that is the most optimal at that point in the fight. However, this is neither here or there anymore because I misunderstood the intention behind the combo button, which I thought would not leave windows open to weave ogcds in.

Are you saying the server or platform can't handle a big amount of skills or the controller can't?
The XIV hotbar interface can support 256 skills on controller. But just because it can, does not mean a user wants to cycle through all those skills in real time combat. ESO only has 12 active skills per class during combat. Twelve is too small, 256 is too large.

The controller can't. The reason it is limited to three bars or 48 skills is because of the quick access the controllers use. You have single tap L2/R2, Double tap L2/R2, and sequential tap L2->R2 or R2->L2. Yes, there are five whole other bars to fill up, but now you have to access those bars manually by holding R1, and pressing the appropriate directional key or button. You can also cycle just by tapping the R1 button, but imagine having to do that while executing an opener. This is without mention that many players share those other bars between all of their jobs, including crafters and gatherers.

Look at it this way. What happens if SE wants to add a third, fourth, fifth or sixth combo string later on to jobs whose core combos already consist of 3 or more hotbar slots?
Those slots double each string when not consolidated, if the amount of skills stay the same. Each skill is fighting for real estate space. If combo skills dominate the space, there is less room for unique buffs/debuffs,control skills, ogcd skills, and less room for skill modifiers.

Adding even one proc/combo based weapon skill to a jobs arsenal changes how you play it. After full combos are established, they don't get a whole lot of modifications with the exception of potency adjustments. I wouldn't expect such complex combo strings to ever be implemented into the game. While being proactive is a good trait, we still have the here and now to deal with.