Thankyou Paul for the code you provided - I am very new to this so apologies for any "stupid" questions. I copied the code you provided and changed the tables line:
Case 1, 3, 5, 6 'The series of tables to process; other tables are excluded

to this:

Case 2, 4, 9, 10 'The series of tables to process; other tables are excluded

When I tabbed out of the last field in Table 2; I got an error that said "Compile Error: Method or data member not found". It highlighted this row of code:
If .Type = wdContentControlCheckBox Then .Checked = False
but specifically the word " .Checked"

I have no idea, what I've done wrong - can you help please?