For Integrations I’m writing custom sql and wanted to add comments using the double-dash syntax (–). Plasmic complains if I try putting the comment before the sql statement, but it works fine after the statement. However the syntax highlighting does not work correctly for comments (it still highlights keywords like “is”, “and”, etc). My main question: if I put comments after my statement will I need to be worried that Plasmic will at some point delete them on accident, or is it officially supported and preserved? 
That sounds like a glitch in the editor syntax highlighting, thanks for reporting. It should be fine to use comments like that though! Cc @icaro