MxHeppa

Thanks, got it.
Here's an example of using two macros for making editing less clunky.

rgb2hsl2rgb.mp4 Yes, these kinds of files just become easily quite huge so it might be a good idea just to delete the intermediate stages once finished.
Below are the two macros that I use on the video. I have not created many .afmacros so I am not sure if they should always be initiated somehow to ensure proper behavior. Well, it is not difficult to re-record, hope these give an idea how to do it. 
RGB2HSL_PrepareEdit.afmacro
RGB2HSL_FinishEdit.afmacro
EDIT: I have no idea if the live filters are actually saved within a macro (as I have saved them as presets), could someone confirm!

Updated. Template now works with V2.

On Windows, G'Mic plugin could be used to decompose layers into many different channels:

It is not possible to output split channels onto layers when using Affinity Photo, but the files are saved onto disk and then opened for manipulation. Recomposition could not be done via G'Mic, because multiple layer input cannot be used, but the recomposition can then be done e.g. by composing an RGB image from spare channels created from grayscale separations and then using the live filter.

Yes. One way is to use the Channels panel to transfer the lightness of each monochrome image to the respective L, A and B channels of a new Pixel object.
Place the three monochrome images into a LAB document and use Rasterise command to convert them to Pixel objects. Name the Pixel objects "L", "A" and "B" (without the double quotes). Run the attached macro which will generate a composite Pixel object named "LAB". L, A & B to LAB.afmacro

C, M, Y & K to CMYK.afmacro

Post file i can get it happen again but i feel never happened again and if remember but i try remember post such case.

i am they (i am non binary) but thanks for list.

what i read upslash is is free still when read licence terms. at least earlier when i asked their photos unaltered means mainly postcards and posters what they sayed to me. i think you should ask their details for licence. i think if you use it book is altered how i understanded their licence is partly your design not pure original image anymore but i recommend ask them becouse licence things are complex. tell you situation i bet they help as they helped me for my unique case.

really nice when we know this not real natural media painting program.

Use something like the Pie Tool with the same dimensions as the circle then superimposed that on top the circle
You can adjust both angles on the pie tool (in the context toolbar) and then add text to that

really nice when we know this not real natural media painting program.

Custom brushes + overlay

Make tools allow finer adjustments like levels (with 0-255/65535 scale) and Contrast/Brightless more accurate than 1%. first one is more improtant is terrible use current scale when you know exact values what you want sometimes we need more than looks good.

Make tools allow finer adjustments like levels (with 0-255/65535 scale) and Contrast/Brightless more accurate than 1%. first one is more improtant is terrible use current scale when you know exact values what you want sometimes we need more than looks good.

Make tools allow finer adjustments like levels (with 0-255/65535 scale) and Contrast/Brightless more accurate than 1%. first one is more improtant is terrible use current scale when you know exact values what you want sometimes we need more than looks good.

dont wont worry.

I ordered their own shop. and i found place where i login their shop somehow i dont see it earlier today. but all is well now. i mean related latest versions but not my problems.(what are topic of this thread).

yes i can do. screenshot. and try i tell more there is eight sliders what define colours what used for gradient values are first colour red,green,blue,alpha
and second colour red,green,blue,alpha.
uinlike "factory" gradientmap there is also alpha values used colours. then you can do for example image beetween black and half drapsparent yellow fpr example.
ps. i develop soon example images.
there is three iamges one what shows gui. and one show orignal image and one show one gradientmap applied.

and my idea is whole/whale if someone thniks?
 

really good.

its indeed whole different thing.

Dont worry we all make mistakes. and for another helper i found it. Saddly i use english version but all is now well.

Is not only time when started working way what earlier now i select brush after tool worked what i expected. so happy is not removed.:) btw i found some special kind uses these dry media brushes this way for exampe. only tested photo and smudge but is so happy now.

looks started working itself way what i expect. i think. and this kind brushes whart i think should deissnged way they are white and almost lightgray in colour mainly. and accum,ulation is one parameter what i searched.
 

i try always help people if i can.