(1) Set Layout

You can set the column layout of the Flexible Panel.
Go to Property and click button on "Set layout" to proceed with the setting.

Present setting of the column layout is shown in blue line.
Column's width can be changed by multiples of 1/12 units by splitting or erasing the corresponding column by mouse movement.

	Divide the corresponding column in to two. The width will be divided evenly if possible, if not, the left hand side of the divided column will be larger. Since the Flexible Panel's minimum width is 1/12 of the size, column already with 1/12 of the size cannot be divided any further.
	Erase the selected column. Single column on the screen cannot be erased.