More Dealing With The TinyMCE Switch

Earlier in the month, I wrote about some of my preliminary experiences dealing with the fallout of the switch from CKEditor to TinyMCE in Domino 14.5. In that post, I talked about some of the ways to deal with covering both, but I only casually mentioned one of the severe limitations in the TinyMCE Dijit implementation. I wanted a way to configure this in a way that is reasonably global and reasonably light-touch, ideally in a way that would leave older customizations working on pre-14.5 servers. I've come up with a tack that I'm mostly happy with, though it still has some limitations.
This is a companion discussion topic for the original entry at https://frostillic.us/blog/posts/2026/2/17/more-dealing-with-the-tinymce-switch