Quick answer: no, but you can edit the gcode by hand particularly if you will be printing this gcode many times because it may take a few tries to get the editing done properly.
Do you have a 2 filament printer? Have you used the "pause at height" plugin? As our cow says, I'm pretty sure it doesn't insert the pause properly when you do "one at a time" because the layer gets reset to zero but it's really easy to insert the pauses manually into the gcode.
For smaller fonts I have had better luck printing upside down where I print the letters first and then print the rest on top. Probably not relevant for you.
But you could consider printing all the bases with one gcode file and all the tops with another. But you'd have to disable active leveling with the "ultituner tweak tool".
I think I would just put in lots of pause commands manually where you want to change colors.
ironing
I know someone who prints similar shaped parts with writing on them for room keys for hotels with some clip-art like art in addition to the room number and he uses the ironing function in cura to great results. Not what you asked about but I think you'll like the improvements.
Are you making lots of these for selling or do you just have a lot of dads? 🙂
How many are we talking? How many different color combinations?
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Slashee_the_Cow 450
The latest versions of Cura do have an option allowing you to choose the order when printing one at a time (was added in 5.7 I think? Can't remember exactly) which might work (it's not really intended for printing objects one on top of the other).
I'm not sure how well the pause at height script you'd need to use for it to pause to change the colours works when printing more than one object either (it can't rely on the layer numbers in the Cura preview because each model resets its layer number).
Also worth noting: if you're using regular PLA on top of rainbow PLA, it doesn't always adhere as well as you'd like, since the rainbow stuff tends to be a bit more slippery, not to mention it'll be cold by the time you get to the top model.
It really depends on how much "a lot" we're talking but getting it all set up to do it in one go - if you can - is probably going to take a while and your chances of failure significantly increase. Personally I'd print them one at a time.
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