I wanted to clarify regarding this version of Built-in Omada SDN Controller V5.15.8.12. On the Supported Device Models page, which I accessed through the release notes, EAP110 and EAP115 are listed as

The Problem: Right now, finding a device you blocked a long time ago on the website is a hassle. You have to search month by month. The mobile app makes this much easier – you can find any blocked dev

The type is limited by online users 2. I just noticed that when the timing is set to 'By Usage,' every time the total set time is used up and expires, I can still reuse the voucher over and over again