How do I delete an unwanted keyboard shortcut?  My "find" shortcut "ctrl-F" got disabled because the last update added another command with the same shortcut (omnibox).  

I've been going round and round trying to figure out how to delete the unwanted omnibox shortcut.  The customize keyboard commands aren't making it any easier.

Tools>Keyboard Shortcuts>Customize>Keyboard>Category

1) There is no "all commands" category (that I can see).  You're left having to guess which category a command might be in.  

I often paste (regular text) within the Doc Pane or from outside source. When IQ has been open for several hours, and about 10% of the time, IQ crashed when I paste text (and I loose some recent work).

I am not able to find a way to reproduce this.
Any idea on how to troubleshoot this?

I like to use charts to display info in a spreadsheet format - eg:

Different charts require different column widths, therefore you cannot consolidate your charts in one grid.  Excel has the same issue.

The only solution I see is creating a new grid for each chart.  This will obviously result in many grids (probably 200-300 for my current project).