It has 5 main panels, MIDI, Audio, Inspire, Mix and Controller and each panel has 4 pages. Each page has four channels (sometimes called blocks). So there are 16 channels (blocks) per panel.

Features:

• Complete automation of VSTi parameters, through parameter changes / MIDI CC.
• Complete control over Timing/Pitch/Velocity/Duration in a independent way of each other (ideal for multi-rhythms/ever evolving melodies).
• Control over LoopEnd-points.
• Creation of Seamless loops / Performance recording.
• SampleLoop mangling.
• An inspiration panel to generate sequences in a few seconds.
• A transposer.

SQ4² comes in 2 flavours:

• SQ4²-I : controls your external gear through MIDI.
• SQ4²-II : controls VST Instruments.

SQ4 costs 29 EUR for the MIDI only version, 49 EUR for the VSTi control version or 59 EUR for both. A demo version is available for download.