Add to M1M3 static support ability to disable force actuators (FAs). Force balance system shall distribute load from failed FAs to remaining actuators. Checks needs to be performed to assure system remain safe to operational - close and far neighbor FAs shall not be disabled.
GUI shall present a graphical representation of disabled FA and ability to enable/disable FA. FA might be disabled on raised mirror (to support disabling failed FA while mirror is used). It shall be possible to raise mirror with disabled FAs.
Tests needs to be performed. First with blank, then with glass mirror.