If you want to monitor activity with that name, the channel in fop2 must be:
Motif/+19541237777
Channels in fop2 are static, you cannot have loose matches as it adds too much load for no real benefit. So, the custom name you see in [] is unmodifiable but you can go to the fop2 buttons page and set the channel filed to be the above.
But as the "name" is a number that is probably dialed and it will probably vary from call to call, then it is not much point on having it that way.
Best regards,