Re: Documenting buffer display

[martin rudalics <rudalics@gmx.at>]

 > While i rather assume user wants to invoke specific action based on
 > the context. for example while working on email i would invoke
 > other-frame ; while working on markdown i would most often call
 > other-window, both for the same bookmark or the same file.

The most simple way to accomplish that with C-x r b is by specifying
in CONDITION of 'display-buffer-alist' a function which delegates the
buffer display to 'display-buffer-pop-up-frame' provided the major
mode of the buffer shown in 'minibuffer-selected-window' is a mail
mode and to 'display-buffer-pop-up-window' provided the major mode of
that buffer is a markdown mode.  No need for additional commands or
keybindings.

martin