Yes, the expression pedal can be configured as a CC64 (sustain pedal function), which allows you to control the length of the sound.

In addition, the DP-10 has switch pedal and expression pedal (continuous pedal) functions, which can be configured by switching the switch.

You can also try switching the DP-10 as a switch pedal, and configure the switch pedal in the MPC-10.

The switch pedal has only two MIDI messages on and off.

I saw that there is a button on the pedal of the DP-10, this button should be the trigger of the switch.

PDC-10 and half pedalling with SUSTAIN