Here is a test patch created using the Katana FX Floorboard using a custom amp
as well as FIVE effects plus noise gate at the same time.
Signal path is Noise Gate --> Slow Gear --> Custom Amp --> Clean Boost --> Phaser --> Dual Series Delay (should hear two delays) --> Reverb.
Although it was setup in Floorboard, I was able to export and reimport it into Boss Tone Studio and save it like any other preset. The caveats are that if either the Amp Type or Effects knobs are adjusted the settings for those individual items will revert back to factory items.
Also attached are screen shots of what it looks like it in Flooboard as well as Boss Tone Studio.