Sign recommendation

I have one reccommendation. Maybe make it possible to, on a sign, continue writing on the next line, and have the [mv] be on the top line (to make more room on the sign):

```
[mv]
e:world:
1,10,100:
90:0
```

this would be the same as:

```
[mv]
e:world:1,10,100:90:0


```
