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There has been an addon under the name that recently got released, i dont wanna be an ass.ole to that person but i think this feature should be implimented to blender no matter what. i bet some people are also asked for this , but i just wanted to came here and do it myself aswell.

Its very useful for anyone trying to figure out stuff , this shit gonna help almost everyone , literally ! , as for as i understand addon using some linking magic , so it doesnt consume much power, even the recipe for this feature is crystal clear, please bring this feature so we can literally see wtf we doing :D