So I played around with this in Gruuls lair the other day and I got to say it works well.
First a screenshot:
The screenshot doesn't really do it justice, but apparently I only hit the screenshot button once.
There is no action field, but there is the ?? field. Clicking this gives you a list of checkmarked symbols. These symbols equate to events. For instance removing the checkmark from the green ++ would make it so that no friendly buff gains are shown. You can pretty much look at the log and determine what each symbol does.
The mod uses all the data obtained from SWStats (including shared data), so you can peruse any data it includes.
For instance. I wanted to see damage, healing, and shieldblock gains on the MT
Click the source field at the top and a textbox opens up. I typed in there /sotAsuran Asuran being the tanks name and /sot means source or target. Asuran being the target of heals and damage. Source because I want to see shield block gain/loss. Typing this in populates the scrolling pane with all the information I want. (possibly more) You can then go into the ?? field and remove checkmarks until it shows only the information you want. (I didn't feel the need most times)
Just want to see damage taken by the tank from Maulgar? Source field Asuran target field Maulgar.
Now lets say you want to check on the Krosh mage tank. Just change the source filter to /sotHiznor and you get all the info. Can be manipulated same as before.
The only thing I wish it had was health values of the target at each event like expiration. Still great to check what killed people at a glance. (easier interface and "noise" easier to handle than expiration at this point)
quick notes:
/swl
-Brings up the window if you close it.
/swl font #
-Changes the font size #. (Though it doesn't seem to persist)