Hi Nico, that is the intended behavior. By default, if no tooltip columns are explicitly defined by the user, we only show the tooltip a if the table no more than 20 columns, otherwise we do not show it at all (but you again, it’s possible to specify it explicitly via
View | Tooltip.... Showing the first n columns would confuse users, I think. Perhaps there could be some middle ground, where we should show all columns up to 20, then first 20 up to if there are up to 50 columns (along with the notice that some columns are not shown), and then not showing anything again if there are more than 50 (no point in showing columns that are unlikely to be of interest to the user).
By the way, if you know your table structure in advance, it’s possible to set the tooltip programmatically by setting the table’s
.tooltip tag to the newline-separated list of column names.