make a few mappings/commands a bit more flexible

[PlasmaHH]

Hi,

I made the following changes to my copy of minibuf and maybe it could be made so that one can configure that behaviour?

In StartExplorer
`
nnoremap o :call MBESelectBuffer(0):MBEFocus:

nnoremap e :call MBESelectBuffer(0):

nnoremap :call MBESelectBuffer(0):MBEToggle:
`
because sometimes I just want to open buf leave the focus to cycle through files and look into them. Then again I want to open and edit right away, but leave the minibuf open, and then I want to open the file and close minibuf at the same time. Having three slightly different mappings is quite convenient.

I also open minibuf map <silent> <F10> :MBEToggle<CR>:MBEFocus<CR>:<BS> because when I want to have the list, I right away want to select and use one. Maybe Toggle can have a config option that makes this automatically?