Shift, alt, ctrl keys in a macro not showing spell tooltip

Hi all, first time user/poster here. WOW GSE rocks but having a problem - I have a priority maco like this in the sequence text box. When I press shift or ctrl it fails to change to that spell. What am I doing wrong?

I tried is as a sequential too and no go.

/cast [mod:shift] Holy Light
/cast [mod:ctrl] Lay on Hands
/cast Blessing of Protection
/cast Divine Protection
/cast Holy Light


/cast [mod:shift] Holy Light
/cast [mod:ctrl] Lay on Hands

Put these lines in the KeyPress box. Where they are they will only trigger IF that is the current line of the macro.

Thanks Tim, much appreciated!