It's called "wait", it is in the inventory.
(FYI HypixelPE uses MiNET, not PocketMine)
I'm pretty sure is WIA (Works As Intended)? This happens on MCPC too.
This seems more like a feature request than a bug report...
1. This site is for bugs, not feature requests.
2. I think it's already added...? The "action" ID in the interact packet.
Confirmed
(iPad mini, iOS 9.1, MCPE 0.12.3, on server HypixelPE (pe.hypixel.net)).
Confirmed for MCPE 0.13.0 on iPad Mini (iOS 9.1). Tested with chat and signs.
Your version of Minecraft is no longer supported, and you are using mods.
Are you sure it was a Detector Rail? Or was it an Activator Rail?
Use minecraft:tripwire instead.
Cannot reproduce.
Have you changed Minecraft account, or anything UUID related? Pets remember their owners by UUID.
The obsidian pillars extend down to Y:0 in Java edition too, so I'm assuming it's not a bug