[quote="MM3 monkey"]what does Ctrl+Space do?[/quote]
It select/deselect the current track, i.e. the track which has the keyboard focus (not current playing song). My RegExp Find & Replace and Invert Selection/Select None scripts are based on this keyboard shortcut, especially the second one. Why I am using it? Well, because of the MM lack of some another, more important API functions which I need as a script developer. For example, I need a function which could tell me which panel is active (main tracklist or Now playing). So, I need to use some dirty tricks with keyboard simulation to get such information. :(

Hey, ZvezdanD, I'll be in the Magic Nodes thread soonish to heap praise and thanks on you (and get back to asking you questions!), but I'm curious: what does Ctrl+Space do?

Will be fixed in next build. [url=http://www.ventismedia.com/mantis/view.php?id=5124]Mantis #5124[/url].

Actually, the same error I get if I press Ctrl+Space in the empty main tracklist, e.g. after click on the Location node.

If the Now Playing panel is active (has keyboard focus) but is empty, or if it has not any track which has a focus, when I press Ctrl+Space I get error message "Access violation ..." (3.0.6.1190). With the Debug version 3.1.0.1207 I get the Error dialog "EndNode must not be nil", "(C:\Sources\...\VirtualTrees.pas, line 23166)".