To add back 1000FT SWQMAs you dismissed with the Dismiss 1000FT SWQMA tool, first ensure that the layer "SWQMA 1000FT Dismissed" is visible, using its checkbox in the legend. Next go to Drawing Tools - Edit features - Restore dismissed 1000ft SWQMA.
Next click on the SWQMA you would like to add back. The SWQMA should highlight and turn yellow. Remember that if a SWQMA intersects another, you may have to repeat the process twice to get all of the parts of that SWQMA. Now click Add back SWQMA.
Here is an example where a SWQMA is in two pieces and would have to be done for each piece.