HVDB Photography

In the Select menu I would like to suggest renaming  Select All Layers to Select All Visible Layers 
(which is what it does effectively)
Hubert
 

Go to Menu :  Window > Layers  to reactivate

Builded up on what @v_kyr provided
A few common manipulations I often apply:
- 50 % multiply blendmode overlay
- clarity adjustment
- dodge & burn

See the METADATA

Also, there is a bug in v2.3 (on Mac, at least) where the canvas display doesn't update unless you briefly zoom in/out. Usually that affects only images that were just opened though.

using the move tool ...

Selective Color Adjustment  
set Blues   > Cyan -100% , Black -100%
set Whites > Black -100%
 
Brightness/ Contrast Adjustment
set Contrast 60%
 
 

SelectiveColorAdj.afphoto

Edit > Preferences
 

Sure ...
 
 

Using Channel Mixer adjustment
Select CMYK >Magenta 
set the value to 60%
 
sample_fringe.afphoto

using the move tool ...

In the meantime, as a work around, you could use arrow brushes instead !
I've made a small set I regularly use (see attachment). Just double click on the file to import them. After import, double clicking on one of the brushes , opens a dialog window where you can change the size to you needs.
 

Arrows.afbrushes

Indeed ...

If it is a multi layered document you also could make a flattened copy of your selection:
Edit > Copy Flattened
and then
File > New From Clipboard
 

If it is a multi layered document you also could make a flattened copy of your selection:
Edit > Copy Flattened
and then
File > New From Clipboard
 

You can change the units via Document > Resize Document
 
 
You can use File > Place to stretch the image over the background

Just ALT + click  on the masks thumbnail.

Did you watch this video ?
 

with the layer active : Edit > Fill
or
Layer > New Fill  Layer 
 

YES please ....
For people (like me) who wear glasses, this can indeed be a handicap. For example, I myself wear glasses with a built-in prism and +11 diopter, and am obliged to increase the scale and layout of my screen to 125% in order to work comfortably.
But if I record my videos with that setting (125%), a lot of shortcuts no longer function !!
So I first have to reset my screen settings to 100% scale, which is very annoying and tiring.

I did change the shorcuts (azerty keyb) as follow
 
 

In the meantime, as a work around, you could use arrow brushes instead !
I've made a small set I regularly use (see attachment). Just double click on the file to import them. After import, double clicking on one of the brushes , opens a dialog window where you can change the size to you needs.
 

Arrows.afbrushes

After you selected the mask layer ,you can use a black brush to  mask unwanted parts.
If you want to edit/ finetune  the mask, it's ALT + click.  When done, click on the "Arrière plan" to exit the  editing
 
 

Jus click on the mask thumbnail to select it