Multimodality - how does it work in SketchUp?

As a novice user, I am not using many of the functionalities in SketchUp yet.
At this time, the number of available tools and options in SketchUp Pro interface is rather distracting, and I am wondering about the possibility of adapting the interface to my needs;, e.g. only showing the icons and functions that I need to be using. I think I have heard that such a feature is available in SketchUp, but I am yet to understand how.

So my question: what options are there for multimodality within the interface of SketchUp Pro?

I look forward to your responses and thank you for reading!

Help us help you.
Kindly provide correct information in your profile.
I.e. Operating System, Graphics Card and SketchUp version (year)
Many questions are difficult or impossible to answer unless you tell us what you’re working with.

Toolbars (Microsoft Windows)

Toolbars and Tool Palettes (Mac OS X)

Never underestimate your ability to help, because your answer fully assisted me in finding out about what I needed to know!