Hello Friend. Thanks for the help. I really appreciate it. Unfortunately, I am not installing CIAs to the 3ds home menu. I am rather loading the encrypted 3ds ROMS from a micro-SD card inserted into the red gateway cartridge. So, I do not think the 3ds bank application can help me.
On my micro-SD card I have about 600 3ds ROMS.
But the Gateway 3ds game select menu only displays the first 256 ROMS and ignores the rest.