The early Windows desktop application did this, but it lost that feature in an update. I'd like it back please.

This is still not possible, at least on the Mac.

Have hit this restriction numerous times, often you need to create a calendar event from information in an email, or vice-versa. Just need to be able to open them in two separate windows.

I think it would be better to have separate apps instead. Need this on Mac too.

Outlook supports this. It's a surprising limitation in Proton.

Often I find myself creating a calendar entry based on the info in an email. It would be really handy to have both windows open at the same time instead of having to go back and forth.

When I tested the first few iterations of the desktop app on Windows, it opened a new window and that was awesome. When the Linux desktop app was release, it made me very sad I can't open both of them as it just replaces the window content. I don't know how other platforms work now, but the Linux client can't open both of them which is very very sad, I would love to keep them side by side on one workspace, I have big enough monitor :)

Totally agree. I think that the idea of having an app for each function on each system is the best option. Having mail / calendar / contact splitted between three softwares in my PC, smartphone, web app, is the standard in Windows, Mac, Nextcloud ... And so should it be on Proton. I don't know if it's the best for everyone, but as it's the standard, it is what I am more familiar with, so the more produtive with.

Hello, this is a pretty simple request to allow people the ability to download the current bundled Email + Calendar software, but also allow people who do not want their emails loaded locally the chance to install the Calendar only.
Thank you for reading!

Please add this feature to the Mac OS desktop app, also.

I am using a Mac and this is super important or I cannot use it.

Allow me to open both Mail and Calendar in separate windows. Currently, it seems that only one window can be open, and either Mail or Calendar can be shown. I want to be able to see both at the same time.

Also, it would be great if I could also have contacts be simultaneously visible.

Windows Calendar app should be a standalone app. This will allow a device that only needs Calendar access to not have mail access and make Calendar access more efficient.

Email and calendar are two different features that can be used independently and thus should have their own apps

Please split the two apps (on macOS) as they are on iOS for example