Hey there Tkp,
Thanks for writing in to our forum!
From what I know about the latest versions of PingPlotter, the custom name doesn't carry into a column within File -> Manage Sessions. However, selecting the closed trace and hitting Open will reopen the trace for viewing in PingPlotter and will retain the name.
Something to note - when renaming a target, this will prevent dynamic DNS from functioning (the IP is locked to the new name). If you'd like to add a name or notation to a trace, you can use the Notes column.
To use Notes, right-click any column header to display a list of columns you can toggle. Enable "Notes" -> right-click a target row -> hover over the host name -> and select "Edit Notes".
If I'm off-base here and you're not quite seeing the same thing as I am, feel free to write in to our Support line at firstname.lastname@example.org; additional info like screenshots are always helpful too!
Please let us know if this leaves you with any other questions or concerns.
All the best,
Quality Assurance Analyst | Pingman Tools
email@example.com | (208) 345-0030 ext. 1059 or 1062