1.Create one production ruleset and add that in access groups to whom you may wants to delegate and also to specific operators. If required create one separate access group and give privileges to that access group.
2.Save the rule in that production ruleset and select action tab in that you may find delegate option to delegate a rule.
3.Verify that delegated rules are available in specific path or not, If not verify that in System-User-MyRules.
4. Data tables we can't delegate directly, So we may need to one more link in navigation links of user portal to show harness.
5.Call section in harness and add repeating grid, Give repeating grid source as RD/DataPage.
6.After clicking on add item it may add one new row to update the record, Add one button in the layout to save the record once you have updated.
7.Call an activity to save the record on click of that button. And find the below attachment for reference where WorkBasketName is the primarykey for that table.