Toolbars, Envelopes, Waveforms, Keyboard, Tag Manager: these actions lets you toggle the visibility of various pieces of the main view.
spatialize piece: will let you spatialize (stereo or full 3D spatialization) your piece. Not implemented yet.
view Iinspector: lets you set some parameters of the current view.
piece inspector: this view shows an editable representation of the piece's data. It should be used only for debugging purposes.
preferences: this view shows a dialog letting you set global preferences. These preferences are stored only if you have a registered version of HighC pro. This dialog needs not be accessed often, because most of the interface's state is preserved automatically from one launch to the next.
messages: various messages, warning or useful information are sometimes issued in this view.
If you encounter a bug or problem while using HighC, open the message window first, then repeat the operation: if you see a lot of strange output in this window (a java stack trace), this means you encountered a bug. Please post (with a copy/paste) the stack trace and how you produced the problem in the HighC forum to obtain a fix.