Test Equipment Calibration of similar types

Dear Sir,

We have a scenario of having 100 numbers Verniers for which we want to have calibration process in SAP .   As all these verniers are of same type and have same calibration due date , so to have an efficient system  we do not want to create 100 different Equipment Master and then 100 different Maintenance Plan .

We look forward to have an approach  where all these 100 equipment gets covered in a single maintenance plan .

I request members to kindly guide me with detail steps to be followed , to address the reported issue please .

With Rgds

B Mittal