intelligent movement of caret to navigate commas

Flutter widget code has lots and lots of commas.

Would it be possible to add shortcuts to the editor that make it easier to move the caret between commas as below:

1. a shortcut key that moves the caret past the nearest comma
This would be very useful when defining properties for widget as often you have to press a few keystrokes to position the caret past a comma (perhaps CTRL+SHIFT+,)

2. a shortcut key that inserts a comma at the end of current line and moves the caret to new line.
This would be useful when defining new widgets as children as often after typing in a widget you need to go to the end of the line, insert the comma and then add then add next child.
Similar to CTRL+ENTER (perhaps CTRL+ENTER+,)

Not sure if this suggestion is related to flutter plugin or IntelliJ itself

## Version info
[✓] Flutter (Channel master, v0.9.6-pre.35, on Linux, locale en_GB.UTF-8)
FLutter plugin 29.1.3