Declined
There is no fast way (or at least we do not know it) to decorate segments and angles. However, it is one of the most frequent operations when constructing drawings for the classes.
For example, in Geogebra Geometry it is 6 clicks and opening 4 submenus. Changing color in comparison is 3 clicks and one menu.
It would be very convenient if decoration was in the fast menu
I like this idea 
These commands are absolutely not the same!
To use them you need
1) input bar to be opened – and by default it is NOT opened in geometry mode of GeoGebra Classic 6
2) to type first 4 letters of this command
3) to find the name of segment in the list of objects – and the list can be long.
You would not do it 'on the fly' showing the changing picture to students on the lesson.
This decoration is very popular in Russian geometry books. I discussed this question with many math teachers and all of them are dreaming of ticks and arcs just in the fast menu.
Now it's like this
It would be better like this
use version 5 for desktop
Developers are more interested in maths than visuals.
now in ver 6 is like
https://wiki.geogebra.org/e...
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