I can’t think of any apps other than dashboards or monitors where you would select more than a handful of devices.
A bit of a warning about installing apps with many involved devices:
App execution time is limited to 20 seconds.
Event subscription is limited to 250 events per minute.
Once you exceed a certain critical mass, it becomes likely for your app to fail intermittently or permanently.
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tgauchat
(ActionTiles.com co-founder Terry @ActionTiles; GitHub: @cosmicpuppy)
4
Yah… I was going to comment that SmartThings probably prefers to not offer a “Select All” function, as a large number of Devices in a SmartApp instance is more likely to put extra load on the Smart Cloud.
Of course, there are quite a few legitimate use cases, and ST’s implementation of of execution and event rate limits is a better answer overall.