The following keyboard combinations don’t work for me (there may be others…):
View > Focus Heading...
View > Focus Tag...
In fact, no shortcuts that require me to press multiple modifiers at once work (eg
View > Collapse by level...).
I have a custom keyboard map, but none of the keys there overlap with FoldingText’s shortcuts, and the same shortcuts work in other apps (eg
Focus Heading... is the same as
Develop > Show Page Source in Safari, which works).