yes, there is.
Probably --maxdualimpact  *,0,0

where * mean exclude, and 0,0 mean default value


--dualdevices didn't work and it will not as stated  here:

Use --dualmode TONDUAL in order to activate this mode.

The parameter --dualdevices is meaningless for this mode.

Not 100 % sure but ...

or wait for Jgonzi...