Conditions are AND. they all have to be true to run the rule.
Is there a way to tag DSL file rules with “schedule” to show their cron time in the schedule section?
I don’t think so, at heart not in .rules files. There is no way to define a tag.
You could add that OR logic is used when multiple conditions are used.
You could add that AND logic is used when multiple conditions are used.
I also highly recommend to move all those But How Do I…? — openHAB Helper Libraries documentation to the documentation part of openhab. It just does not belong that seperated in my opinion.
As long as the Helper Libraries are not a part of the openHAB project, it’s docs cannot be a part of the openHAB docs.