Dear,
You need to add one or two more criteria, i.e., similar to HD, you may add Short Leave (SH) or you can use some other codes which I have used, i.e., you may change LP into SH. You need to unprotect all the sheets, then in the master sheet, change LP into SH. Then add one more column in all the sheets, i.e., Jan-Dec at the end and calculate the sum as SH/4.
The password for the file is "shiv." You may need to change some more validations accordingly.
Thanks & Regards,
Shiv