Commands not easily accessible

Hello Community,

I am just starting using Corel Draw 2024, and I am struggling with some commands despite of having experience with Adobe Illustrator

I tried to get some basic shapes from Common Shapes, but I could not locate it in the Tools bar. It should be included with the Rectangle or Polygon tools group, and I could not even find a way to enable it. 

I found another way to get access to this option in Tool>Options>Customization, but it shows that option is not assigned to anything

How can I assign this option to the Polygon's group?

Also, when I try to combine 2 shapes, it seems Corel requires extra steps to do something so simple. The properties bar clearly shows the combine option, but when I click on it, the shapes are not combined and the properties bar just changes

  

Is there a way to make this task straightforward so when I click on Combine both shapes are merged, similar to Illustrator?