Rectangle tool not working like before [2018]

Hey all.

How can I simply draw a rectangle, as in previous versions, and have it become its own editable layer?

As it is, I have to create a layer first, then draw the rectangle overtop of it, and then I can't edit its colour anymore. So to be clear: I can't click the layer with the rectangle tool and change the colour in the properties panel like before.

Also, in the previous version, I was able to draw a rectangle right overtop of a smart object photo and it would just create its own layer. Now it won't let me, as it thinks I'm trying to draw it into the smart object.

B.