This ticket is part of ZBXNEXT-7680. It's aim is to provide a collection of links/lines usability improvements that can be done on the Zabbix maps.

1. Add the option to make lines in corners/roundings as well as staircase movable lines.
2. Add the option to add arrow ends to lines (left and/or right) as well as different kinds of arrow drawing styles.
3. Allow link indicators to be changed based on problem tags (like with service monitoring)
4. Make {HOST.HOST} usable in links by making the setting of the host dynamic based on which side you are editing the link or a different solution (see below).
5. Link labels should be moveable on the line. Pehaps link labels should not be edited on the link at all, but just a normal text box that snaps to the link upon when we put it on top.
6. Add additional options to the host group elements placing algorithm. (Now it's just grid)
7. ZBXNEXT-5060 : Map link indicator color should follow trigger severity color