Tree Menu - too narrow

[JakeE30]

Hi,

Is there any reason why my tree menu on the left is so narrow? It’s a simple thing but very annoying.
I’ve tried all the obvious things to expand it like dragging it etc. And I can’t find anything in any menu that suggests how to adjust it.

Thanks….

(black client)

[MickyMcFinnigan]

Go to Tools\Configuration\General Options and adjust the “parameters panel size” out to 220 or something that suits.