Im not 100% sure of what I’m here saying, but as I understand it from how to add glide to modular synths:
The glide is achieved by slopes in the voltage stream. It can be done either by the controller or as a slope/ramp/glide module before the oscillator at the synth. To stabilize notes from an analog step sequencer a quantizer module is helpful to quantize to the steps of a musical scale.
If there is no quantizer for the pitch at the input of the P10, and I have hard to believe there has been added a such, glide would be possible if the controller sends glide.