[amibroker] Addcolumn adjust width

["compoundinfinity" <lhw1@xxxxxxxxxxxxxxx>]

New user here.  I want to add some columns to the exploration result 
list for debugging but I have to manually stretch out the columns every 
time I open the window.

I have tried the following:

AddColumn(Open,"open",width=-1);
AddColumn(High,"high",width=-1);
AddColumn(Low,"low",width=-1);

which works fine for open and high but makes no difference for low.  
Also, how do I adjust the column width for the date/time field?

Thanks,
Luke