if you mean the VSTi selected in "Opt -> MIDI/audio driver setup -> VSTi/DXi Synth Settings"

then you are correct. That one is more a user initial "default" set a synth, and that one does indeed have to be closed to get out of the opt/preferences menus

However, if you use the one in the "toolbar" under instruments - it should stay open until you close it?

see pic

good luck
Larry

EDIT
Sorry Video Track I guess we hit enter about same time blush

Attached Files (Click to download or enlarge) (Only available when you are logged in)
VSTi stay open.jpg (228 KB, 32 downloads)
Last edited by Larry Kehl; 01/23/15 01:38 PM.

Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20