Are you aware of “Design Rules” and “Net Classes” and how they work?
If you define a net class, you can set a certain track width, clearance and via properties, and then you can assign that net class to a bunch of nets, and you can define multiple net classes in a project. It’s common to set up a narrow net class for signal tracks, and a wider for power connections, etc. Normally you set up some net classes before you start routing a PCB, and then while drawing the copper tracks, each net automatically uses the settings from the net class it is in.