Tell which pattern a selected module is used in

[sk0]

While making a song, I often load lots of modules, copy and tweak them so that they can fit with different scenes of a song (for example in my latest project, synths for dubstep drop are also used in buildup with some changes made).
When done, I want to remove unused modules, and to check whether the copied modules are in suitable places or not. A feature that tells where a selected module is used will be much helpful for this purpose.

As for how to show the result, I suggest that patterns in which pattern the selected module appears will be selected (highlighted in green as usual) or something like this with more persistent highlighting so that after tweaking patterns you can still tell where the modules appears.