Questions; External Apps; PA.com Apps block update

Greetings,
Great work all these long years, I am back once again to set up a portable library.

A few questions if you don't mind, I found it hard to search the forum, so will just ask here.

A) Can I block a single app from update? I have a license for PDF Exchange Editor Plus; an old build from last year, so don't want the app to auto update. Can an ini file or something control if a app updates?

B) the FAQ says "For example, if you have a portable program MyApp.exe, you could create a folder called X:\PortableApps\MyApp\ and place MyApp.exe and all its files within there. Then, just click Apps - Refresh App Icons within the PortableApps.com Menu and your new app will show up."

This has worked for most apps, but one that hasn't is "PortableApps\Obsidian-Portable\ObsidianPortable.exe", though I don't see anything coming up in the menu as mentioned. Is there away to create an ini file or update/add the locations manually?

C) A future request would be to add short keys for apps (ALT + O open X.exe), or to have a run box and write a short command that is re-writable to open an app (the latter like https://www.bayden.com/slickrun/)

Good work,
Wishing you well
Peace from Australia