Pharo 6. Mac OS X mouse doubleclick issues to highlight a word.

I am using Mac OS X El Capitan. Double click timeout should be about 500ms. Currently was 350. I changed DoubleClickTime value in HandMorph initialize which seems to work, but a) double click works incorrectly. Double click should dclick twice and highlight the word before 2nd button release and while holding it down drag the mouse to highlight multiple words if the user needs to. b) triple click should in highlight a line even before release of 3rd click. It does not. c) wheel scrolling is too sensitive. I don't know enough about Pharo to fix. Thanks