SourceAnywhere and SQL Source Control

I work for a small development team who've been looking into having some sort of source control for our DBs. Unfortunately, we're using Dynamsoft's SourceAnywhere for code source control which is not immediately compatible with SSC. Luckily, SSC allows config files for special cases and Dynamsoft has provided some support in making the two compatible, available here: How to integrate SourceAnywhere 6.x with Red Gate's SSMS?. I have a major gripe with how they've done this, however, as it requires putting your source control username and password in plain text in the config file (which SCC's template specifically says NOT TO DO). Our company does have to follow some strict security standards, so this simply won't fly. Is there anyway to get SSC to prompt the user for their username and password and have it combine that with the config file (where it injects the username & password into the config file's command line arguments)? I'm also looking at this issue from the SourceAnywhere angle, as it seems that the program used to receive the command has its source code bundled with it; considering it's not a very large program, it may be possible to solve the problem from there as well. If anyone could provide help or advice (aside from switching to TFS or Git, which I'd like but is currently impossible), I'd love to hear it.