Mixing Korean and Colemak

Korean has several keyboard layouts, the most common is Dubeolsik (두벌식; 2-set).

Has anybody tried typing and switching between these two layouts (Colemak and Korean) or similar?
This is currently a need of mine that could potentially be well serviced by the textblade.
Many set-ups get confused and try to use the qwerty mapping which results in the incorrect mapping of the Korean keys.

I applied for TREG and didn’t hear back. I would also use Korean, but would use QWERTY. I believe there are other Korean users on here but I’m not sure