[Help] Bladesinger Script / Macro

I want to create a Script / Macro that incrase Const save and AC automatically by click one button like the Paladin Aura script.
I try to use ChatSetAttr but i don't understand.
Can some one help me ?

I really like making things like this! I actually made one for a player last week. This does work, but there's a caveat:

!setattr --silent --sel --repeating_acmod_$0_global_ac_active_flag|1
!setattr --silent --sel --repeating_damagemod_$0_global_damage_active_flag|1

This will turn on the first AC mod and first global damage mod on the 5e OGL sheet. I know there is a way to grant the bonus you want to the CON save but it doesn't actually show the proficiency box as checked. I can't seem to find that one here, but I'll see what I can find.

I use 2 Macro : Active ; Deactive =

ActiveBladeSing  "  !setattr --name Kalanys Rilynt'tar --evaluate --constitution_save_bonus|%intelligence_mod% + %constitution_mod%  "
DeactiveBladeSong  "  !setattr --name Kalanys Rilynt'tar --evaluate --constitution_save_bonus|%intelligence_mod% - %constitution_mod% "