Private call connections to XLX(alpha) reflectors

It is easy to connect to XLX299A on my OpenSpot 4Pro, just private call to 329901 - so easy.

Is there a way to connect to an XLX reflector with an “alpha suffix”, using private call on an OpenSpot 4Pro?

Example: XLXOKLA
Private Call: 315111201 ????
Where:
XLX = 3
O = 15
K = 11
L = 12
A = 01

Please advise.

Thanks and 73,

Chris
N6JET

Sorry, it's not possible.