Welcome to the forum.
You might want to look into creating a “dummy” .gcode.3mf file. Export a gcode file for a cube from Bambu Studio so it will generate the .gcode.3mf file structure. Then check out this post about replacing the gcode inside of the 3mf file. This will allow you open this modified .3mf file in studio and remotely send it to your printer. You can then also start it remotely from the SD card.