Attribute Problem Regarding Decimals

I’m not sure if this belongs in Scripting Support, but how do you put a float (decimal) value into an attribute via properties? I know you can do it through a script like this: part:GetAttribute("Test", 1.5), but it gives an error when you try to do it through the menu.

Here is a screenshot:

replace . into _ ig guess it could work

Edit: oh you talking about name

You just set it to Test in your example and edit value after that

No, I mean how do you preemptively add it via properties?

Give it a type and name
After that there will be created an attribute in attributes category inside properties window and here you can set its value.