Spacebar = Preview Attachments in MacOS?

A default way in MacOS is to press spacebar to preview anything. This can be PDF, Wordfiles or any other files that you can press spacebar on your desktop to preview.
The MacOS version of eMClient is lacking this default function which has been a very used feature of MacOS since it’s early days.

Please add preview attachment function in MacOS by pressing spacebar.
It saves so many steps.