Change Lead stage on reactivation

Hello all,

In our business, we have maintained the Lead stages as below

Requirement is to move to 'Initiate' stage whenever a lead is reactivated.

I am using below code to get the active stage name.

var activeStage = formContext.data.process.getActiveStage();
var stageName = activeStage.getName()

Can someone tell me, how to set the stage to 'Initate' .

Will setActiveStage work here ?