Can I add an insert effect to the External input signal on the XR622 Master Bus module?

Can I add an insert effect to the External input signal on the XR622 Master Bus module?

An insert effect cannot be applied to a signal reaching the XR622 via the the External input.

This is because the External input is placed after the Insert send.

The Insert send only transmits the signals that reach the XR622 via the X-Rack or Mynx's internal Mix bus (signals coming from an Eight Input or Four Input module placed to the left of the XR622).