I can't express how helpful the addon is. I've been using it for several years and I can't imagine playing without it!

I run many alts. When playing on a certain character, I may put some time coding a complex expression to filter groups the way I want.
When switching to another character, it'd be useful if I can "load" that expression from the first character and tweak it, instead of writing it from scratch, or relog-copy-relog-paste.
It also helps when "resetting" the expression by mistake.

Requirements:

• Maintaining a list of expressions within account-wide settings, each entry is a filter expression and a name
• "Save" button to save the expression (with a user-defined name) to the list
• "Load" button to load any of the saved expressions, overwriting the current expression

Nice-to-have

• A warning when loading before overriding current expression
• Rename/Delete for saved filters
• Allowing categorizing the expressions within "Mythic+"/"Raid"/"PVP", .. etc Categories
• "Share" option to share filters with other players (like what WeakAura does)

There are already two possible implementations, although both way out of date:

1. enkol did a tab implementation in https://github.com/enkol/wow-premade-groups-filter. Code is stored in branch feature/tabs-by-enkol
2. rickardkarlsson did a load/store implementation in #52. Code is stored in branch feature/load-store-by-rickardkarlsson

Keeping this issue open for now as a future idea. No implementation planned at the moment.

Hello @RamyRafik

While waiting for the creation of this template / save functionality (if there is one day), a solution could be to create one or more personal / common macro on each of your character :

https://github.com/0xbs/premade-groups-filter/wiki/FAQ#how-can-i-switch-between-multiple-configurations-on-a-single-char