I agree with you, it is very hard to find a scenario when it is useful

Flatten Images makes the image opaque (adds white background).

Open Layers popover, tap 'Select', select some layers, and tap 'Merge' icon in Layers popover or Layers>Merge>Merge Selected from top menu to merge them together.

It is simple
Let's say you are using Hue blend mode.
When you paint, the stroke is affecting only the active layer, all other layers are ignored.
To achieve the same effect with layer blending you have to disable white background layer (so Hue layer is blended only with the layer below).

How layer blending works: let's say you have 3 layers. First, the bottom (background) layer is blended with layer 1, then the result of that is blended with layer 2.

If you enable background layer (white opaque), the top layer (the one with Hue blending mode) will affect all layer below (not only the one below). To achieve the same effect with brush blending you have to first merge Background Layer and Layer 1, and paint on the merged layer (which is opaque).

Currently it is not possible, sorry

Thanks for the file.

Unfortunately in Artstudio version 2.1.x it is not possible to recreate this scenario.

However we have already implemented mechanism allowing that in Artstudio 2.2 - now mask (or masks) placed over a clipping mask is applied to the clipping mask (not to associated normal layer like before).

PLease give us more details. You can send a screenshot or video to info@luckyclan.com

- fixed exporting screen recording videos with speed > 1
- few other bug fixes and stability improvements

Mac version:
- fixed bug when using two screens (for example iMac + Huion Kamvas)