i got this question
coze i see that capabilitite values automatically from server side to client side 

but when i was making the briefcase i notice than inside the menu gui its update the capability values form the local side to the capability in the server side 

 

is inside the capability system a funcion to force an update adnd send the values from the clienside up overwrite the value sin the serverside of a capability ? 

and if it is how do i use it ? 
 

 

 

 

12 hours ago, perromercenary00 said:

coze i see that capabilitite values automatically from server side to client side 

They do not, you need to create a packet. Capabilities do not automatically do anything.

12 hours ago, perromercenary00 said:

is inside the capability system a funcion to force an update adnd send the values from the clienside up overwrite the value sin the serverside of a capability ? 

Create your own. A capability is just like any other java object: if you do nothing with the data in it, nothing will happen.