User Portlet User Portlet

Discussions
This should work: f[x:_?NumericQ:10] := 2 * x
Shortcuts like cntrl + ^ and cntrl + / only work for Mathematica and Wolfram Desktop I think (didn't try it on the latter). All the shortcuts for the Wolfram Cloud should be listed here: ...
I set "ShowGroupOpener" to "True" in the Options Inspector in "Global Preferences", but when creating a new notebook, this setting is not applied to it. For it to show effect, I have to manually set "ShowGroupOpener" to "True" for my new notebook...