How can I update values inside linked object from a bot?

[DroidTeo]

Hello all!
Here my current situation: 
I have a table TAB1, with N ref columns, let's say TAB2, TAB3 and TAB4. 

Once the state of an object Tab1 is changed, I want to update the state of the linked object 2, 3 and 4 .
I was thinking to use a Bot.. but, I'm not sure. 
Can you give me please your advice/suggestion? 

Thank you!

[DroidTeo · Accepted solution]

Here my solution (I don't know if it is the best one, but it works):

1. I've created an action inside eact Tab -> 2, 3,4
2. this action set the value of the field as I need and this action is not shown 
3. I've created a bot and 
4. inside the bot, there is a task by table
5. and the task uses "run action on rows" -> in this way I can call the action created at point 1