The following conditions are available for custom actions.
Conditions that evaluate data within a repeating section, table, or nested table may perform an action based on the result of the condition on any field within the same instance within that repeater/table. It may not perform an action on any element contained within other repeating sections or tables, in other instances within the same repeater/table, or any element outside of the repeating section/ table. In addition, nested tables allow you to create a condition on the top level of a table that will initiate an action within the second level of the table. When dealing with repeater fields and nested tables, conditions cannot be set on lower level because there are multiple instances of fields and the condition would not know which field should be determining whether or not an action should execute.