Wrokshop Attendance Sheet - Option to add additonal blank spaces

It would be great as well as the options provided when generating an attendance sheet against a workshop, if you were able to select X number of additional rows below the student list for students added late/after attendance sheet generated.

For example, it could be a drop down that you want to add 2 (or however many) blank rows under the list of students actually booked into the workshop. 

This would allow for late bookings or surprise attendance. Currently for a plain attendance sheet I can do this via coding in a HTML table, but this does not allow for linking in with the units of competency as per the built in attendance form against aXcelerate.