davidz1989

Make sure to select layer mask
Go to channels studio, select layer mask alpha and select create spare channel
from spare channel you can select to load to pixel selection
 
Same way if you want to create selection from opacity layers, go to channels  studio,
select layer pixel alpha and create spare channel then you can load selection from spare channel
 
I hope developer can make easy way to create selection from layer just  like affinity photo desktop
 
 
 

I find that method a bit hit and miss to be honest. This method just gives you the missing desktop commands directly.
 
 I have put the following macros into this macro collection which can be imported to your iPad, if there are other requests I can add them in too.
Edit 2020-03-03: Removed Dropbox link and added macro library file direct. Updated to V3 of the Library.
Mud’s Macros V3
SelectionFromLayer - convert a layer into a pixel selection
SelectAllLayers - select all layers quickly
DeSelectAllLayers - de select all layers quickly
PencilPortrait - Convert Photo to pencil sketch (Credit: Alpha Sierra, YouTube)
InpaintCrop2 - fix edges after a straighten crop (Credit: Jim Welsh)
Inpaint - the inpaint option from the desktop.
Sketch Effect by R C-R - Converts to a sketch effect
Dave’s 6-Layer High Pass Sharpening - Uses 6 layers of sharpening
ExpandStroke - Expand Stroke from Designer 
TextOnCurve - Text on Curve from Designer
 
Mud's Macros V3.afmacros

Hi David, see my post above, the macro uses EXACTLY the same method as the desktop version, its literally one click.

click show details maybe?

finally i found a way to create selection from layer , by using channels studio,  select composite alpha and load/add to pixel selection