I hope that they will add this feature too. I also use that a lot in Illustrator and miss it in Sketch every time I try to align something.

nope. But it was bought through app store.

Yes, I had to enter it again.

I didn't get my Sketch 3 from the App Store.

Pretty easy to do with a plugin, e.g: https://github.com/alssndro/sandros-sketch-plugins/blob/master/Layers/Unlock%20All%20Layers%20%28all%20Artboards,%20all%20Pages%29.sketchplugin

Eventually a "alt+click on lock = unlock/lock all" will be introduced (I am guessing).

Yes http://backend.bohemiancoding.com/store/edu/

Revert to 3.1 for the time being?

Try https://dl.dropboxusercontent.com/u/93762/older-versions/sketch-3.1.1.zip

We cannot personally test every single plugin under the sun, and we expect plugin developers to do some testing on their side (that's why we have betas, after all).

However, https://github.com/zmalltalker/sketch-android-assets (I'm assuming this is the one you're using) seems to be somehow dead (there's an issue regarding compatibility problems from 2 months ago, and opened issues from 9 months ago…) so the usual "contact the plugin developer" advice doesn't apply here.

We'll try to take a look at the plugin's code and see if it can be fixed easily.

Hey Noah, I wrote a basic Android generator plugin that should work with the new Sketch. It's on Github here. I can easily add other options, so let me know if there's other functionality you need.