XHC-HB04 wireless MPG pendant HAL module

I have already configured in hal cycle start pause stop external buttons
and spindle start stop external buttons and when i start linuxcnc it reports that
these signals already used and can't used by XHC-HB04.
How can i use both the external buttons and XHC-HB04 together without conflict ?

You have to use an OR comparator, to connect two inputs to a single output.

Some easier way to do this ?
This code github.com/LinuxCNC/linuxcnc/blob/master.../hallib/xhc-hb04.tcl
creates hal pins pendant_util.X can do something with these pins?

There is also a bug with XHC-HB04 with ferror i had set it to feed-spindle override
and show me ferror to Z axis when rotated quick the encoder wheel.