to be there are no Output types related to physical inventory MI01

we have developed a SAP script form and print program for physical inventory documnet . and we are using Z transaction code to run this..

now the requiremnt is, the same form and print program need to be called when they run the transactions MI03, or MI01 or MI02.

it seems to be there are no Output types related to physical inventory in NACE..

Could any one of you guide me how to do assign this custom form and program to these transactions.

Its bit urgent.

AMar