Minitab dialog boxes retain dialog box and sub-dialog box variables and settings for the current Minitab session, and are saved with the project. When you set dialog box options, Minitab remembers the settings until you change them again. This feature lets you be consistent and save time when rerunning graphs and analyses.
To re-open the previous dialog box with the most recent settings, press Ctrl+E, or click the Edit Last Dialog button on the Standard toolbar.
For example, suppose you create a simple scatterplot of variables Height and Weight, and you subsetted the data to exclude even-numbered rows. When you return to the dialog box, Height and Weight are still entered in the main dialog box, and sub-dialog box settings still specify subsetting by even-numbered rows. Or, perhaps you customize the options for displaying descriptive statistics. After additional analysis, you decide to display descriptive statistics again, only this time for a different variable. Minitab remembers your previous settings so that you can generate similar output without having to reset the options.
If you do not want to use the retained settings and variables, in the main dialog box, press the F3 key to reset them.
To unhide the columns, make the worksheet active, select the visible columns on either side of the hidden columns, then right-click and choose .