How to define multicolour filament

How do I define multi color filament in the AMS? Also, If I print a model, then add text to it, how do I select the color of filament?
Non BBL Filament, so no RFID tag
P1S
AMS
0.4 nozzle

You can set the filament type and colour using either the device tab in Bambu Studio (right side of that tab).

You can also do this in Bambu Handy, from the devices tab. Scroll up to see the AMS slots.

You can use one or the other of both if you prefer, it doesn’t matter which route you choose the AMS will get updated.

You simply, select the slot and then choose the filament type and set the colour.

The P series printers are the only ones without a colour screen, so it isn’t set on the printer’s display.

I think I didn’t explain this very well. I am using tri-color silk PLA, Red, Blue, and green, all on the same roll, not different rolls. Sorry for the mixup… In BBS, all of the colors are single color per roll.

You don’t, the point of these filaments is you’ll get a random assortment of colors as it gets used, you can’t choose what you get when and the slicer doesn’t care.

There is no option for that. For some bambulab filaments it will select one color that looks close (for example the galaxy pla has a greenish color in the slicer, but is actually green/black depending on the light) and for others it has this thing, but I don’t think you can do that yourself:
image

It could be a great add-on feature for BambuStudio if one could do that in device tab if that’s not feasible to do on X1/A1 screen within bounds of the firmware

Ya know, all I’m looking for is a title that could be shown in AMS, not the specific colors -
something like “silk multicolor” so when I look at the AMS, I can see that this is silk multicolor, and not black, red, or some other SINGLE color. I can’t see where I can enter text as a descriptor…that is all I want.

Ah, you CAN do that! Check out this thread:

It worked for me in bambu slicer. You can follow procedure described there and instead of “silk” enter “silk multicolor”