What can I use in this field?
Also, I'd like to write an ad-hoc CSS for text size, without having to use CSS class. Can I use it here?
Can I specify in this section the background color of the cells for the columns?

It is possible to use {$value} variable in this field, it will be replaced with value of the column which name is defined in "Columns settings -> ID" parameter. It is also possible to use {$columns:COLUMN_NAME} variables, just replace COLUMN_NAME with name of the column which value you want to show. For example if want to modify values of "Title" column, set "Columns settings -> ID" parameter to Title value and populate "Columns settings -> Format" parameter with the following value:



Regards,
ARI Soft