Can I disable the built-in Markdown editor?

I’m having trouble using the Nextcloud app’s built-in Markdown text editor. Some files don’t open (infinite spinner). When they do open it is slow or won’t scroll. Search doesn’t help me navigate to matches (it only highlights them).

No worries–work in progress–but I need a workaround. And I found one: choosing “download” or “sync” for a file, then using “open with” to edit locally in Markor. If I’m worried about conflicts I just lock the file first.

Question/idea: Is it possible to reduce a few steps by forcing the Nextcloud app to always sync a .md file and open it in Markor? Maybe lock it too? That would be handy.