These options allow you to configure the number of times a rule can trigger and at what rate it will rearm after each trigger (subject to any Conditions you have set being satisfied).
In the first image the rule can trigger up to 100 times, once it has triggered the rule will rearm after 5 seconds and be ready to trigger again subject to the conditions being satisfied.
In the following image the rule is 'Always Armed' and can trigger an unlimited amount of time and will rearm upon every refresh, so this rule would begin triggering as soon as it was applied to a market in Guardian and it was refreshed.
Next the rule is again 'Always Armed' but is also able to trigger even when the market is suspended. Used in combination with the Market Status condition you could trigger a rule when the market is closed to retrieve your settled P/L or the Win Status of a selection to then pass to another market using Stored Values
In this final image the rule is armed to trigger when the market is in-play, it can trigger up to three times and re-arms after five seconds. The 'Add markets betting delay' option is also ticked, this prevents the rule from placing another bet until the first has reaches the market.
For Example, with Betfair applying a 8 second bet delay to an in-play football market, and with the rule armed for 5 seconds, a second bet could trigger before the first has even reached the market. By ticking this option the second bet will trigger 5 seconds after the first has reached the market.
Whenever creating new or editing existing rules always ensure you test your rules when in Practice Mode first to ensure they are triggering exactly as you want them to.