jamovi

Hello, everyone!
I've recently found out the rj module and found out that it offers some graphics not offered in the ther modules (even flexplot, apparently).
However, I barely know R language. Does anyone have a tutorial that could help learn a little bit of both? Right now I just wanna make simple plots like bar and line plots, but they look so much prettier in Jamovi/R!
PS: For example, I would like to label this one here in the X axis.

PS: I already found out how to label the axis, but I still would like a tutorial on how to work in rj module, if anyone could share.
Thank you guys in advance!