Maskprocessor file size

[2die4]

Hello. I searched a lot but I didn't find a way to calculate an approximate wordlist file size created with maskprocessor. I create a wordlist with this command, "mp64.exe -1 ?l?d?u!@#$%^&* ?u?1?1?1?1?1?1?1 -r 2", and it doesn't even show me the result of "--combinations" (not compatible with -r option), let alone inform me about the file size.
Is there any way to know the file size, like crunch?
If not, can that be added any time in the future?
Thanx a lot to all the commmunity.