I agree with others in this epically long thread, that this is somewhere between ridiculous and unacceptable. 

Carl says there are several reasons why a feature may be limited and it could be anything from a limitation on a server to a question of cost... well that's fair enough if you can tell us what the reasons are, but to just say the dev team won't tell you is silly - you all work for the same company!

If they don't fix this feature I'll be moving completely away from Kasa.

@Carl I last posted to this thread in September of 2020. I sympathize with your lack of information on the status of increasing the number of smart actions, but you have to admit, not to have an answer yes or no to this question which was posed in April 2020 isn't acceptable. It's pretty clear at this point that the answer is "no" and we're just being strung along to retain us as customers. Continued lack of IFTTT support is also a strong negative. It's really a shame, as TP-Link Kasa switches are excellent devices, easy to install and reliable in operation. Except they only support a trivial level of home automation capability that customers want and your competitors provide. Between two homes, I currently have 10 Kasa plugs and power strips, and 8 Kasa switches - I won't be buying any more. I'll just wait until Wyze releases their smart switch (they already have a plug) and replace all my Kasa switches and plugs. It'll cost me more money, and the quality of Wyze products isn't as high as TP-Link, but if I ever want to expand my system's capabilities, it's pretty clear that Kasa isn't the way to go. Sorry to see TP-Link doesn't see customer needs and competitiveness as a priority. 

@Carl It's by design?  TP-Link needs to rethink their product development team.  This is a head-scratcher.

@Carl Any update?

@Carl 

Checking in a little over a year later.  We can still only enable 3 smart actions.  Any word yet?

I could check back next year but I'll be building a new house in the Spring and will need all new switches.  Do you know what the delay is?

Thanks!

@Carl are there any updates on this serious limitation issue?

It is amazing that this limitation still exists. I have lots of Kasa products, and have just added another one, but ran into this fiasco. I can't possibly continue to recommend Kasa at this point.