Number input - slider missing

Hello,

I have two install of HAOS. My old one and my new one… both on HAOS 13.2

I am trying to setup a simple number input.
I am using: Devices & services > Helpers > Create helper > number

However, in my old instance - I have the below screen shot. Which, includes slider option.

In my new install, I have the following screenshot which does not include the slider option. Which is quite important.

Can anyone tell me why this is?

Hope to hear,
Neil

Probably missing Advanced Mode setting in user settings.