This is the free version, which doesn't support saving tabs. It does allow export to midi.
Two note input modes: scroll wheel and numeric pad
In the scroll wheel input, choose "x" to mute the string.
In the numeric pad input, "b" (back) cancels the note input, "e" (enter) confirms note input, and "_" (blank) clears the note at the selected position.
Supported features include:
*Independent string tuning
*Customizable hotkeys for most functions