So if the colors are the same from spool 1 to spool 2 or any location for that matter the easiest way todo this is make sure the filament type is the one you are going to use and then slice the plate and then use Send to send the project to the printer you can then print from the printers menu and you will be presented with the dialog to match the colors and it should pick the correct rolls, it will pick up the colors if they are in diffrent locations. You can also hit print in the print view you can then select the correct rolls here in circled you can tap and re assign.
If this is not what you mean need a little more to understand the ask.
You can also make sure you are in your selected printer if you have more than one and drop down the filament you want to change one at a time and select where the new one is coming from.
These are the three main ways to change the locations and types.