Add Mono In / Stereo Insert track

I’ve been using Cubase for years, but I always face some problems when recording guitars and basses.
If I put an amp simulator (e.g. Amplitube 4) into the guitar track directly, it will be mono out.
So to make most of the sim (or make it stereo out), I have to use it in the FX track. It’s so cumbersome.
Effects should be treated stereo as long as it offers.
Sorry for bad English. Here i wrote with my mother tongue (Japanese).

(Amplitube4 などの)アンプシミュレーターをギタートラックにかけた場合、その出力がモノラルであることです。