How to add an existing span source vlan ?

[SubnetWarrior]

Helo masters, 

So i have a very simple task yet so risky becuase it is in server farm's production environment.

We have existing session monitor 3 itu vlan 100 as source vlan. I want to simply add 230 vlan as source. 

What command to add 230 vlan to an existing session monitor?

no source vlan `103 both --> source vlan 103,230 ?

source vlan add 230?

My gns3 doesnt have n7k image, so i can't lab.

[balaji.bandi]

You can add the below syntax - it overwrites-  exiting configured. (this span only not going to have any impact on DATA traffic

source { interface type | vlan { number | range } [ rx | tx | both ]