>>403237181
Not at this time, no. There easily could be support, but we'd never know because the only documentation SL0 supplied with the level editor is on how to make sure you won't phase through your HL2 map port. So far, the only thing you can do is runtime triggers. You can't even make cool puzzle levels yet since you have to code buttons yourself, and god knows if that'll even work. 
I think the philosophy of SL0 is pretty clear, it's pretty much a group of autistic developers putting out products that, while incredible, are untested and hard to use. For example, in order to even get the assets from the game in your level, you have to download the ripped pallets from another modder, it's not actually included in the SDK. 
The current restrictions really do suck, the campaign seemed like a huge inspiration to level modders, but almost none of the tools that SL0 used to make their own levels are actually there. It feels like a huge middle finger.