Default Brics Extensions


I’m just doing the trial app to see if BlocsApp can help me accomplish my work goals. I see the documentation of creating custom Brics. But, I was wondering if there is any documentation on how we could extend the default Brics that come with the app pre-built when you install it.

#1 Can we extend an existing Bric?
#2 Can we extend the paragraph and link Brics so that when someone ads a link we can add custom html data-key=“value” key/value pair attributes to it?

Also, is there not a code view window of the current build? It seems like this would be a super idea for what looks to be a really well thought out application already.