Open multiple nmoney files at once

[Vigilaterr]

Issue

I have 8 accounts with transactions between them. And to correctly see whole finansual picture I have to open all 8 of them one by one within the app. I want to reduce time to open multiple accounts.

What I tryed and how it fail

1. As I try to open nmoney file from file manager or terminal I have message "This application can not open files." This true for AUR and Flatpak version.
2. Drag and drop on Denaro start page nmoney files led to app crash. Error message in terminal:

   Process terminated. A callback was made on a garbage collected delegate of type 'GObject-2.0!GObject.Internal.ToggleNotify::Invoke'.
   Repeat 2 times:
   --------------------------------
   at GObject.Internal.Object.RemoveToggleRef(IntPtr, GObject.Internal.ToggleNotify, IntPtr)
   --------------------------------
   at GObject.Internal.ObjectMapper+ToggleRef.Dispose()
   at GObject.Internal.ObjectMapper.Unmap(IntPtr)
   at GObject.Internal.ObjectHandle.ReleaseHandle()
   at System.Runtime.InteropServices.SafeHandle.InternalRelease(Boolean)
   at System.Runtime.InteropServices.SafeHandle.Finalize()

   Request

PLease, add an options to open files from file manager or terminal OR Add an option to open multiple accounts (nmoney files) from filepicker within the app