Question [Q] Switching internal and external SD in 4.4.2 [OMNI]

I've trying to switching my SD storages in KK (OMNIROM) but with no success.

Trying to remount, work in terminal but not in system (see screenshots)
Also seems not working if executed at boot

Possible someone can help?

Link2SD seems not detecting the external SD (why?), possible a bug in omni?

Are there any KK ROMS/Kernels, which supports switching SD's?
Or any no internal-ums solutions? <--- prefered way (using internal for appdata and external as sd)

THX a lot

Best,
Meg
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