You are using Kate or KDevelop and often editing directly the sources of Markdown files, Qt UI files, SVG files, Dot graph files and whatever else formats which are based on plain text files?
And you are having to use a workflow to check the current state which is saving the file and (re)loading it in a separate viewer application?
And a Markdown kpart? Never seen before. Because it is new. Actually seems the week of Markdown in the KDE community, there is also a patch on review to add Markdown support for Okular. Sadly Markdown support in Okular with the Okular kpart would not yet replace that separate Markdown kpart, because Okular does not support webview-style display (single “reactive” page), misses support for data streaming without touching the filesystem, and has too much chrome in the kpart for simple usage. Hope is on the future and somebody (you?) improving that. I am doing my share of improving things with this preview plugin, so I am out 🙂