Description
Is your feature request related to a problem? Please describe.
I've noticed this problem and documented it here on this Reddit post.
Essentially, the first layer goes down well because I print the lighter colors before the black filament on my XL5T, but then on the next layer the black filament shows through because the tools print 1->5 on the first layer, but then in the opposite order on the next layer, probably to lower the amount of time spent toolchanging.
Describe the solution you'd like
I see two ways to fix this issue. The first, add some sort of checkbox to enforce printing toolheads in ascending order for every layer, i.e. print tools 1 through 5 sequentially, then repeat that order for every layer until the end of the print. The second, have a box where you can select a toolhead to have "priority", that is, it will always be used first.
Describe how it would work
As mentioned above, either a checkbox that enforces a toolchange back to the first toolhead after the end of a layer, or a box that would allow a "priority" tool to be used as the first on all layers (if present on that layer)
Describe alternatives you've considered
I have racked my brain and I am unaware of any way to do what I am conveying here.
Additional context
See the Reddit post above. Thanks!