Summary column in query builder not available

[AndaA]

Hello,

Within a query builder in EG, there is a column called 'Summary'. This normally allows the user to generate counts, distinct count, sum and other such basic statistics (based on the chosen grouping level). From one moment to another, this 'Summary' column has dissapeared. Do you know whether this is an option which can be enabled/disabled? I do not understand why it has dissapeared in one time and therefore struggle to find a solution. 

Many thanks in advance!

[seemiyah]

This happened to me. The issue was caused by the 'Summary' column being shrunk. Hover between the 'Source' and 'Format' column, then expand.