I created few dashboards for particular reasons, like regarding DataBase, Errors, UserExperience, etc. I do know that the Dashboards and Business Transactions can be reused, to some extent, stated that the corresponding sensors and methods are configured. I am seeking to find the resources, if any, being shared by the community, either here or in the dynatrace forum.
Got it. Sorry that I misunderstood your question.
We had several attempts of doing a "dashboard collection" but so far havent come up with a consolidated space. I think you will find most interesting dashboards in our FastPacks, e.g: Web Sphere Commerce or hybris
You can download these fastpacks (and many more on our github repository: https://github.com/dynaTrace/). These FastPacks contain all these cool dashboards. Also - there are some great dashboards in the easytravel sample app