Form selections in one cell

I have a form in a sheet where multiple checkboxes can be selected for text strings that are then copied and inserted in a column of cells. Open the attached file, select the "test" sheet and click "Run Macro". Select some checkboxes and click "Commandbutton1" then "Commandbutton2" and view the "Save" sheet and you will see your selections listed in the A column. Now, what I am trying to do is to have these selections all listed in the A1 cell, not one selection in each cell. Hope this is clear.
ZMulit-Selections---Play-Here.xls