Allow Channel Admins to be able to enter "select" or "edit" mode where checkboxes appear next to the messages.
Admins would be able to select messages one by one or to select a range of messages by clicking the first one, holding Shift button and selecting the last one (like we've used from other software).

After selecting multiple messages, Admins would be able to delete them at once, or perform any other action that might be implemented during the development (move, archive, flag, something else).

This feature would make it a lot easier to delete whole bunches of off-topic messages and make all the channels cleaner and easier to use - both from user and admin point of view.

Hopefully it was helpful :)
Best

I like Mattermost client, it's way better than anything else out there.
I want to manage my Facebook messages inside Mattermost client, and I want to connect to an IRC which has nothing to do with my corporation.

So I want to mess my private life with work, but I would be very happy about this.

There were trials, for example, libpurple with Pidgin chat client. But Pidgin is like using windows live messenger in 2020.

I know Facebook Messenger has no public protocol for that, so I'm not requesting to implement that, but provide, for example, IRC, libpurple protocols to let community hack facebook into Mattermost.

I love that I can get notified when there is a post with a sound. But we have a community channel that a huge number of people belong to where things are discussed that I'm not interested in. I was added to the channel by my boss, and think it would be rude to disconnect. But if I could just turn off the notifications for that channel then I wouldn't be so distracted looking at many many notifications that have nothing to do with me and my work. Thanks for letting us make suggestions to make Matermost even better! Our team loves it!! Barb

When the client goes offline, which is common when laptops suspend or for corporate implementations where a VPN is required to access the server, the only feedback provided is that the server can't be reached and to get help. This is not only not an appropriate message in this case but the message stays on the screen even after the connection is re-established. Instead of showing a disconnection message I propose replacing it with a connection state indicator. Ideally when the client is offline it will obvious (like changing the color of the window) but I won't be able to send new messages and it will also be obvious when it goes back online.

I found Mattermost to be a great replacement in many cases for traditional UI. It's good way for creating rapid solutions, where we need interface to interact with backend functionality. Also it could be used as the middle way for the UI or great solution for partners/third parties/temporary solutions.
My examples:
/bankstmts [find] <InvNum/Customer/Amount>
- result is printed in table
- backend gets transaction list from various banks, parse it and store it
- employee can check if customer paid for her invoice/sales order
/report sales <today/date/dateRange>
- returns redash report
/erpsalesdoc [find] <docNum/customer>
- returns table with doc info
- employe can check ie. his daily sales report
/datawarehouse_customer [find] <TIN/phone/e-mail>
- returns table with info about customer from all company systems

(OT)I plan to use it also as a caller (Asterisk) notification system which returns info about calling customer - with Mattermost its piece of cake, you can just focus on backend (I use and can recommend Node-RED as integration platform), later if needed on other frontend.

Giving this as a work tool has one disadvantage - writing commands with params and args.Using command history is a bit helpful.
The solution could be possibility to define keyboard shortcut for slash command which ie. after hitting ctrl+e return "/bankstms find " text.
On OSX I get working apple script combined with keyboard shortcut - which pastes slash command with argument from clipboard (ready to hit enter slash command) - but this is related only to OSX, it requires some knowledge and it works very slow (few seconds).
For now my solution is to use text expander (System Preferences > Keyboard > Text) where I can define ie. "!1" and get "/bankstmts find ".

In summary
Requirement: custom keyboard shortcut per slash command (with arg if needed ie. "/bank_stmts find ") with, if it is possible, appending content from clipboard.
If clipboard will be supported, possibility to auto enter command.
Define channel where command should be executed - choose channel name or set to active channel.
Shortcuts should be firstly configured by admin globally.

EDITED:
"The globalShortcut module can register/unregister a global keyboard shortcut with the operating system so that you can customize the operations for various shortcuts." - from https://github.com/electron/electron/blob/master/docs/api/global-shortcut.md#global-shortcut.

"Perform copy and paste operations on the system clipboard." from https://github.com/electron/electron/blob/master/docs/api/clipboard.md#clipboard.

Thanks!

Why the hell this text area is so small? it's hard to write :)

After upgrading the Windows desktop client from 4.3.1 to 4.3.2, both installed with the MSI, an entry for both versions exist in add/remove programs.

Two keys are created in the registry.

HKEYLOCALMACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{A44E2D12-7D92-4ABC-8366-35E1CD827C01}

and

HKEYLOCALMACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{C0437176-EF43-4633-A55C-1164B09E8646}

Updating the application, which would normally be a simple process of running the MSI for the latest version with the /qn switch through any systems management system has turned into a scripting exercise. Either the GUID should stay the same or the old version should be automatically removed.

Additionally, removing 4.3.1 after installing 4.3.2 breaks the installation, as the files are installed to the same location.