This addon filters out the debuffs and buffs that you don't care about. If you're a melee class, you can filter out everything but CoR, FF and Sunder. If you're a caster, you can just show debuffs like CoE and Winter's Chill. Healers can filter out everything but their buffs and HoTs, etc.

It supports the 40 debuff limit, and besides filtering your current target, you can filter buffs/debuffs on yourself, and buffs/debuffs on the Focus target.

To configure the mod once it's installed, type /dfilter -- you should see a simple UI. To add a filter, select your target from the dropdown menu (Target, Player, Focus), select the Buff or Debuff tab, then type in the name of your buff/debuff and click Add.

If you're not sure how to set the Focus target, you can either type /focus <target> or go into keybindings and bind keys to "Focus Target" and "Target Focus" under Targeting Funcions.

Note: make sure filtering is turned on for your target type, or you won't see anything get filtered.

To move the frames, check "Show Backdrop" and shift-click and drag one of the backdrops.

If you'd like to change the orientation of any frame, select the direction under the dropdown Grow menu, then configure how many buffs or debuffs you'd like to see per row. The layout settings are as follows:

Right-Down, Right-Up: grows to the right, new rows start below or above the first row.

Left-Down, Left-Up: grows to the left, new rows start below or above the first row.

If the "rows" setting is set to 1, you'll have vertical orientation.

To change the orientation of the buff duration time, ctrl-right click the frame you'd like to configure.

A few configuration options exist that aren't available through the UI -- to see them, type /dfilter help

Settings are stored on a per-character/server basis, so it should work fine if you have alts.