Hiding rows in protected document using check box as "trigger".

Hello All:

I'm having difficulty in a protected document (protect sheet) for a macro to run that would allow for hidden rows to become visible for data entry and keep document protected once rows are visible. Macro needs to be initiated by a check box.

Also,

Once check box is "deselected" the same rows need to become hidden once again without loosing data contained within those hidden rows.

Please see attached document for more clarity.


Thank you in advance for your help.