ProcessMaker Forum | BPM Workflow Simplified

Dear Team Members,

Greetings of the Day!. I am new to processmaker. My question is on how to prohibit the user in the next step from editing the previous rows in the grid.

I have attached my grid with values. which was filled in the first step. Now I want to prohibit the user in the next step from editing the previous rows in the grid. I have 6 steps in the entire process.

Thanks in Adv - B4ALLB4U

take a look at this.
https://wiki.processmaker.com/3.0/JavaScript_Functions_and_Methods#attr