Currently there is no way to test alert templates without bogus keywords (for availability alerts) or really low performance thresholds. This is extremely time consuming to have to do this, especially when something I will need to test 20+ times as a new template is being developed. It can take an entire day to build one template and sign off on it for production, when it should take no more than 30-60m.
Here you can review submitted feature requests and vote up the ones you like! If you can't find the feature you want - go ahead and suggest your own idea. Ideas with the highest rating can be implemented in the product.