How to: Clear items in the Query Design grid.
Solution:
Select the 'Edit' menu and select 'Clear Grid'.
1) If the Database window is not active, activate the Database window.
2) Click the 'Queries' tab in the Database window.
Queries tab
3) Select the desired query. (The query is highlighted.)
4) Click 'Design'. (The query appears in query design view.)
5) Select the 'Edit' menu and select 'Clear Grid'. (The entire grid is cleared.)