Combine with RTE shy Button (insertcharacters)

[kimchristiansen]

This extension is awesome – thanks for that!
In the past i added shy's to the rte with the ck_editor insertcharacters shy button, which was re-added a time ago:

https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/8.7.x/Important-85361-EXTrte_ckeditor-Re-addTheSoftHyphenButton.html

But the problem with this solution is, that the is no visible Feedback for shy's.
With shyguy installed the "old" rte shy button still has no visible feedback. Would it be possible to combine the shyguy with the rte Button?