Ammendment is an Xcode Source Extension containing a set of features that I personally use.
Select lines where cursors at.
A combination of "select word next to cursor" and "select next occurrence".
(I didn't know Find > Select Next Occurrence exists...But at least this version works more like that of vscode since it also does the first-step selection)
Moves all curosrs up / down 5 lines, keeping columns unchanged if possible.
Add a cusor above the top most cursor or below the one at bottom, keeping column unchanged if possible.
Join lines into a single line within one selection, separating by whitesapces.
Increase / Decrease selected numerics by 1 (for integer) or 0.1 (for floating point).