CorelDRAW and .NET UI Automation Framework

Does anyone have any experience working with .NET UI Automation with CorelDRAW? I just found out about this and I think this can be alternative to conventional SendKeys method, isn't it?

Here's the overview:

My goal is automate a Save As dialog (by accessing File > Save As > then inputting file name to the field). Reason I'm taking this way because I found the built in API's Save function is single threaded...