Choose layout margins and columns and then modify each individual page.
How to move gutters in a column text box indesign.
You can modify the gutter which is the width of the space between each column.
Then select the text frames and lock them command l ctrl l.
When you finish click ok to apply the changes.
The text frame changes size depending on the width you set in this column.
The gutter value controls the amount of space between columns.
Choose layout margins and columns.
Then drag the column guides where you want them.
Open the pages panel window pages and select the thumbnails for the pages you wish to change.
Use margins and column guides to position content.
You can change margins and columns by setting new values in the margins and columns dialog box.
Then choose layout margins and columns and in the dialog box set the number of columns and gutter that you want.
Unlock the column guides by choosing view grids guides lock column guides.
Change the value in the gutter text field.
How to set and modify columns column gutters margins and guides in adobe indesign cc.