@Carl I'll put my hand up for this feature as well.  I'm doing a very large installation (it will be 90 Kasa devices throughout the house and front/back yard) and it's a replacement for a Wemo deployment that has gone from bad to worse over the years.  So far, Kasa wins hands down in absolutely every category but this lack of group scheduling is a major inhibitor right now and something (shockingly) that Wemo does very well.  Here is my use case:

- Schedule my 7 grouped outdoor plugs to turn on the landscaping transformers every night at dusk and off at 11pm (*** it would be AWESOME to have an offset ability as well, like "45 minutes before dusk")

- Turn off every light at 11pm (90 of them)

- Turn off all grouped closet and bathroom lights at 9am (20 of them... because my family just seems to love leaving them on)

- Turn off all grouped closet lights after they have been on for 10 minutes (11 of them)

One requirement would be that a device can be part of multiple groups, and inheret multiple scheduling settings.  This admittedly does get tricky and some contention logic needs to be developed, but all I can say is that if the folks at Wemo, who can't even seem to keep a simple switch on WiFi for more than a few weeks after 7 years of deevlopment can figure it out, I'm sure your Engineers can do better. :-)

Inconvenient not to have this for sure given the number of switches I have goign in and certainly I can drive it with IFTTT but I'd love to do it all in the app, which is really impressive otherwise!

My workaround was to do it all within Apple Shortcuts.  I know that isn't much help for Androind users.

@Carl Wonderful solution.  This should be posted everywhere because you are scheduling a group just with the name of scene.  Consider a scene to be a different type of group where you have to have a scene to turn on and a scene to turn off.  No big deal.  Thanks for the workaround!!

@Carl in 2019, TP-Link said the feature was coming.  Two years later, NOTHING.

TP-Link can't even fix their servers to provide timely camera motion detection notifications even though they've been aware of the issue for years.  How do you think the KD100 Doorbell device will do when the notifications are 10 minutes after the event?😕

I too find this a bit of a shock that something so simple as grouping multiple devices under one schedule is not standard for smart lights or plugs.

This function is only required when customers purchase multiple devices, so they have usually invested $$$$ into those devices and expect a feature that should be "common sense".

I have four switches controlling outside lights around the house, and its a P.I.T.A to have to separately program a schedule for each one. Perhaps customers need a direct link to those who decide "features", but I'd say tp-link is "out of touch" with customers in this case.

@maggsmaggs I have to agree. To schedule events for groups would be a huge benefit. It's a feature most smart systems have as a standard. I am in the same boat as many here. I purchased multiple switches, dimmers and plugs expecting to be able to simply have them function together for holiday items. I have scheduled each individually as a work around. Not ideal. Please see if this can be included in the next software revision for the app. It seems that the devices are "smart" enough to support this. 

@Carl 

Just purchased KP200 plugs and disappointed there's no group schedule or ability to disable schedules once setup. Is there any attempt to add this type of functionality? Wemo does it just fine. Seems people have complained about this for over 2 years.