Traditionally, players fill out the Character Sheet tab of a Character within their DM/storyteller's Game after being assigned that Character by their DM/storyteller. Within a Game, only the Creator or promoted GMs are able to add Characters and assign them to players . Alternatively, if you are able to export Characters into your DM/storyteller's Game, you may opt to create a Character within your own Game , and then transfer that Character to your DM/storyteller's Game using the Character Vault . Any questions regarding D&D 5E game mechanics are considered off-topic for the Roll20 Community Forums. Off-topic questions should be asked over at /r/rpg , r/dnd or /r/dndnext .