You can hide any column from the screen to better suite your requirements
These settings will be saved to hd so as to be remembered for any later opening of the table
Use the appropriate button at bottom right side of the Viewer window to open this screen

In this example :
the column DATE is a LONG reformatted to a DATE display
the column TIME is a LONG reformatted to a TIME display
the columns AMTGALS - PESTLINK & NONCOMPAT are Hidden
You can use the buttons at lower end of the screen to Hide or Show a selected or all columns
You can also use the "Reset" button to erase all settings and revert to defaults
A simple click in the D or T column of any LONG column will toggle the display