UCCNC with AXBB-E and PoKey57U

[mreeb]

Not sure if this falls under the software or hardware forums. If it's in the wrong, please let me know.
I'm building a 3 axis gantry (A slaved to X) so technically 4 axis. I'm running out of inputs to do all the limit switches, etc...
I already have the AXBB-E and UCCNC license. Can I use a PoKey57U with UCCNC to pick up any additional I/O I'll need?

[dezsoe]

No, you can't. Did you use up the 5 more inputs on port 3?

[mreeb]

No, you can't. Did you use up the 5 more inputs on port 3?

4 of the 5 inputs.