UICELLECT | Give a cell array, get a nicely laid out UI for selecting ("cellecting") cells

Give a cell array, get a UI for selecting ("cellecting") contents of one or more cells and returning the contents and their indices. Automated layout of lengthy cell arrays in multiple columns. Option to enable/disable multi-selection. When multi-selection is enabled, uicontrol to select all/de-select all is automatically created.
For more info, see the GitHub repository on which it is maintained: https://github.com/spunt/uicellect