DDMsgReader - Indexed message reader mode

Hi,

This is a feature request, and was touched on in discussions, but just formalising it here.

It would be great if there was an Indexed message reader mode.

When activated (e.g. a key from a Synchronet menu), it would display ALL message sub groups on a single (scrollable) page, grouped together by message group. This would be instead of having to 'click through' a message group first.

It would also put all echoes with NEW messages at the top of each group, for easy identification.

Screenshot attached.