[Python523]

1.) Light effects are handled on the clientside part as well, animations can be set either way, think of client and serverside this way, whatever is clientsided, is running on your computer, whatever is serverside is running on the server (graal's computer)

2.) client.strings can be read and wrote to bother server and clientside

3.) I don't get the question but if are asking if a player needs to be present in the level to execute the script, no the player does not, if the script is serverside the npc will still be working, like if the npc is scripted to move randomly, the npc will continue to move randomly with or without a player