You can set the gutter size from the new document menu when creating a new indesign project.
Indesign gutter width.
This requires that the gutter width should be set to a value that is at least equal to the point size of the text preferably equal to or greater than the leading.
This menu allows the user to establish the preferred number of columns declare the width of the columns and determine the amount of gutter spacing between the columns of an individual text frame.
Change the width of the columns by entering a new value in the width text field.
A screen shot would be very helpful to help us figure out what you.
The text frame changes size depending on the width you set in this column.
Users may also insert spacing on the top bottom left and right of the column.
The width of the columns is automatically set depending on the width of the text frame you created.
Anything less and you ll need a vertical rule to achieve enough visual separation.
Use margins and column guides to position content.
Change the value in the gutter text field.
To set or change the number of columns in an individual text frame and establish the gutter spacing between these columns open the object menu and choose text frame options you can specify a column count create fixed width columns that hold their width when you change the width of the frame and set the gutter between adjacent columns.
Or you can update or add a gutter to an existing project by selecting layout margins and columns from the top menu bar.
Adobe users edit gutter spacing through the text frame options menu.
Open your indesign project file select the page or pages you want to change select from the pages panel from the top menu select layout margins and columns in the popup margins and columns window set the number of columnsdesired must be two of more.
Enter values for top bottom left and right margins as well as the number of columns and the gutter the space between columns.
This brief video provides an overview of how to change the width of the margins and gutters in an existing indesign document.
It also covers how to add addit.
Open the pages panel window pages and select the thumbnails for the pages you wish to change.
Indesign uses the first definition in margins and columns so i m going to guess that is what your question is about.