What is the enhancement in mind? How should it look and feel?
It is presently possible to have a horizontal layout of the party frame.  This is useful for healers as it allows the party frame to be placed below or above the action allowing better peripheral vision of what is going on (as opposed to having the eyes glued to the bars on the left hand side of the screen).

However the target (and target target) frames of the party members that appear grow to the right.  These unit frames then overwrite the frames to the right of the party member (i.e. target target of party member 1 overwrites frame of party member 2).

-> It would be nice to be able to have the targets and target target frames grow down (or up) on a horizontal party frame layout. <-

Please provide any additional information below.

Example:

 Buf1   Buf2   Buf3

 Party_Member_1

 Target_of_Member_1

 Target-target_of_Member_1