Merged in a post from Ember Ember:

Title: Snapshot to Disk - Custom Size Presets (Save, Delete, Name/Rename)

Details: When using the Snapshot to Disk function currently, there is a drop-down list of built-in preset image sizes including an option to type in a custom Width x Height. When you choose Custom -- 1) the values are reset to "Current Window" (per login session), and 2) you must manually type in the values (per login session and per photo-shoot when you need to use differing aspect ratios per shoot.)

Example use case: I want to save a 1:1 square image to disk (a size not offered in the built-in presets). I choose Custom, uncheck the "Constrain Proportions" box and type in "1024 x 1024". And now want to take a second Snapshot to Disk but with a 16:9 aspect ratio (which is also not offered in the built-in presets). So, I type in "1920 x 1080".

=== My Feature Request ===

Add functionality in Snapshot to Disk for users to save Custom presets that can be accessed again later (like the 1:1 and 16:9 in my example above) along with the ability to delete and name/rename presets. Currently, the viewer offers these presets: "Current Window", five 4:3 aspect ratios (that appear in the list as follows: 320x240, 640x480, 800x600, 1024x768, and 1600x1200), and one 5:4 (1280x1024). The ability to save new presets, rename, and delete them would be a small quality of life improvement for photographers who utilize the Snapshot to Disk function.