These are some good proposals to increase the usefulness of the log viewer app for real day to day use. See the linked support ticket for more information.

Don't ignore files not having "log" in the name

Current implementation shows only files of magnolia.logs.dir with "log" in the name. This means that catalina.out is not shown (and that's often the most important log file).

Setting the log level for more than one class at once

It should be possible to select more than one class in the list and set a new log level. Another option would be to set the log level for a package name (see below).

Set the log level for a package

Sometimes it would be very handy to change the log level for a package instead of single classes.

Paging the view with the keyboard

Right now its only possible to scroll in chrome with the scroll bar - but not with the page-up/-down, cursor-keys...

Select parts of log views and copy them

It must be possible to mark entries and copy/paste them.

Update the current log view (like tail -f)

It's very important for test-persons to be able to have a look at the current log (eg catalina.out) while testing specific functionalities. Therefore the display of th ecurrent log should be an actual view which will automatically be updated. It should be possible to suspend automatic updating and start it again. In addition, the view should be scrollable.