Hold Table Position in a Sheet

Question

I have created a form for a small business that contains multiple tables and saved it as a template.  Is there some way to hold the tables in their position so they cannot be inadvertantly moved? That way the form can have information entered into it and keep the form layout from being changed by mistake. I thought Lock would work but it doesn't allow data to be inserted into the cells.
The form is a Purchase Order that has cells that require names, products, prices, dates, etc. to be entered. 
I haven't seen any information anywhere that even addresses this question.
Thanks

Answer 1

Numbers Tables may be Locked. This prevents accidental deletion of data or formulas in the Table, as well as maintaining the Table's position on the Sheet. It also prevents data entry on that Table.
"I haven't seen any information anywhere that even addresses this question."
Numbers '90 User Guide, p216:
Locking and Unlocking Objects
You can lock objects to avoid inadvertently moving them as you work.
After you lock individual or grouped objects, you can’t move, delete, or modify them
in any way until you unlock them. However, a locked object can be selected, copied, or
duplicated; when you copy or duplicate a locked object, the new object is also locked.
"Tables", like anything else that can be placed on a Sheet, are "objects."
Individual cells are not "objects," so they don't fall under this description, and can't be 'locked'.
If you can redesign your document to separate the data entry cells onto non-lockable tables and the result cells onto tables that may be locked, that may solve your problem.
Regards,
Barry