[Done 2.6] Render To Instrument (Memorize More Options)

[kasmo]

@Airmann

• the check box for “remove source VST” is always enabled when the dialog is opened, even if it’s disabled. Would be nice if Renoise could remember my last setting

https://forum.renoise.com/t/plugin-grabber-should-memorize-options-over-sessions/26948

the strange thing is that all other checkboxes are saved during the session.