ServerCarts has two signs you can use in TrainCarts:
SCC (ServerCarts Comment):
[+train]
scc set
<text>
<text>
• Replaces all comments with this one.
[+train]
scc add
<text>
<text>
• Adds a new comment with the other ones.
[+train]
scc delete
• Deletes all commands.
SCN (ServerCarts Next Stop):
[+train]
scn stop set
<text>
<text>
• Set the name of the next station of the train.
[+train]
scn stop delete
• Deletes the next station, and it's ETA it exists.
[+train]
scn eta set
<number>
• Set an ETA (Estimated Time of Arrival) to the next stop (in minutes).
Setting the value to 0 will delete the ETA
[+train]
scn eta delete
• Delete the ETA.
You will need the servercarts.signs permission node in order to use these signs