Aqua-Soft Forumsis there a docklet out there for ObjectDock to activate the showcase instead of using a hotkey ? then, after it was activated, it will go back to normal in X sec.... that would be great !
[req] av showcase thingy
searching "activate showcase" on this forum you get this thread. There you will find hints about how to write a small vb script that you can then put in your dock 
well it's nice to use the script but I also think it would be nice to have a timer that after a few seconds will deactivate the showcase since it will not allow to access the dock when it's on....
so write a script with a timer... google with the right query and it will give you self-explaining examples... you don't need l33t programming sk1llz for this
Or you could make a hotcorner as explained in my thread that completely rips off dreadnauts script
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oops, objectdock, ignore me
Incase you don't know how to write a script or just don't want to.
I did a small exe in Lazarus (FreePascal) to do what you wanted.
You need to pass 2 parameters. First one the Key combo, the send the Time
example {^[F11]} 5000
where {} groups the entire key sequence. ^ Sends the control [F11] sends the F11 key. In short. It sends Ctrl-F11
5000 is in milli seconds. 1000mil. = 1 sec. 5 second delay.
Let me know if this is ok for you. You'll need to use it has a shortcut and put a real nice icon 
& = ALT
^ = CTRL
! = Shift
[] used to Identify the virtual keys aka Fkeys
I haven't documented any of the keys.. If there is a key combo your not sure let me know.
If you want it let me know