Hello arch_papo, why don't you use the blocks technology to make a "standard" component that you could name and give a good insertion point for you to use in all your drawings. If you use a lot of your blocks you will have to consider so distance between them for a good assembly.

Create a block and use the Array command to set it out.  Or.....

...try using the SuperHatch command found in Express Tools.

That could certainly be done as a Hatch pattern, if you don't mind the buttons not being true circles, but segmented approximations.  But if you always do it in full panels, I would agree with the suggestion to use a Block [in which the buttons can be true Circles, and they could also be on a different Layer or otherwise in a different color/linetype/lineweight/etc. than the panel outlines], and you can use the MINSERT command to put a whole area of them in at once, like a rectangular Array but as one drawing entity.