Toby,
Another thought for future versions (unless I missed it again!).
For a number of logfile types we use there are a lot of "noise" error and warning messages. These may number in the thousands and makes it difficult to "see the forest for the trees". Right now, I load the file, then apply a pre-made "noise" filter to get rid of the useless errors. I also will apply a highlight or two in most cases of manually exclude.
In a moment of laziness, I thought "it would be nice to be able to specify templates/highlights to apply automatically on file open in the parser configuration" so that I didn't have to go through the same extra steps I know I will need to do every time I open a specific type log file.

Just a thought!!
Bill G.