P6 really needs a way to limit relationship lines. Seems like it is a spaghetti mess or northing...or filter items to get.

agree 100% basically you have to make the logic but cant see it it gets too messy

same here David Kelly I have sure track on my computer since it can use 64 bytes and P3 on a backup laptop 

Granted P6 (or rather the P3e product that Primavera orginally bought) is not P3, so it will never be the same, Oracle have been woeful at listening to what users want and implementing them. I don't think you'll see anything actually useful changed in P6 any further as they want us all to move to Oracle Primavera Cloud. I think it's just as likely we'll just walk to other solutions providers instead.

Since Primavera (in all its manifestations!) still can't do basic CPM calculation (i.e., it still cannot compute critical path drag, THE critical metric for schedule analysis and compression!), a functionality that both Spider Project and Asta Powerproject provide to their users, it's hard to imagine that its users WON'T soon go to a better system!

Fraternally in project management,

Steve the Bajan

Looking at the link lines in complex projects is kind of useless, there are other views such as a links table showing al link parameter properties but it does not comes within P6. 

Logic League by Ron Winter Consulting LLC.

Usually it is good enough to show a layout showing predecessor/successor columns as P6 links options are limited to a few parameters.

Primavera P6 Professional New Column Type