yes, but you need fbi on both sysnand (injected into health and safety app) and emunand to install to both sysnand (destination SD) and emunand (Also destination SD)
do not, i repeat, do not install gba games to destination NAND.
but generally, i dont even bother with installing games to emunand too, unless i really play them all the time, its not really worth wasting twice the space. emunand gba games are pretty much just desktop shortcuts redirecting you to sysnands installation of that game.