Why? Just click on start then adjust the window resolution and mode to full screen. There's no need to go outside dbpro for a simple launcher window. Buttons, text boxes, they can all be coded within dbpro directly it's not a big deal. For example:
set window layout 0, 0, 0
Sync on
Sync rate 60
ink 0, 0
do
if mousex() > screen width()/2 - 60 AND mousex() < screen width()/2 + 60 AND mousey() > screen height()/2 -10 AND mousey() < screen height()/2 + 10
box screen width()/2 - 60, screen height()/2-10, screen width()/2 + 60, screen height()/2+10, rgb(128, 128, 0), rgb(128, 0, 128), rgb(0, 128, 128), rgb(128, 128, 128)
ink 255, 255
center text screen width()/2, screen height()/2-8, "Start Game"
If mouseclick() = 1 then exit
else
box screen width()/2 - 60, screen height()/2-10, screen width()/2 + 60, screen height()/2+10, rgb(255, 255, 0), rgb(255, 0, 255), rgb(0, 255, 255), rgb(255, 255, 255)
ink 0, 0
center text screen width()/2, screen height()/2-8, "Start Game"
endif
sync
loop
Set Window Off
Set display mode 1024, 768, 32
ink rgb(255, 255, 255), 0
Do
Center Text screen width()/2, screen height()/2, "Game mode running, press escape to exit."
Sync
Loop
just click on start and it goes into the game mode.
I think that about covers it, a boarder-less window with a simple game launcher system and more than enough room for option menus and anything else you want to put int there.
There's really no reason to go into plugins for this kind of thing.