Request: Mixer Brush on photoshop elements ?

Hello, I have a problem with PE2023.

I'm following a course/ tutorial and in a lesson they says to use the Mixer Brush. Now, Adobe Elements , I don't know why don't have a mixer brush (since it's similar to the smudge tool), I hope it will be introduced in the next update, as,  it's a simple tool and can fit good , also together the smudge tool, to be added in Photoshop Elements.  
 

For now, I can 't go on on the tutorial, as the mixer brush it seems different from the smudge tool, or , do you know if there's a way to reach the same effect with other options /tools?
I don't know, maybe the most expert could find a way to obtain the results the same (since elements it reach the effects in less time and is more 'immediate', but I don't know the software well yet. 

How can I find a way to make a mixer brush in Photoshop Elements 2023?  

Thank you in advance for the help!