WOX

To change the template, you can do it by "Environment setting> template management" on the blog management screen.
For details, please see the following page of the manual.
"Usage Manual> Blog> Basic Usage> Change Template"

In WOX, parts (parts) that can be added or deleted freely, such as calendars and categories, are called "plug-ins". You can add, edit, and delete plugins from the detailed settings on the blog administration screen.

For details, refer to "Usage Manual> Blog> Advanced Settings> Plug-in Layout and Settings" Page and "Usage Manual> Blog> Advanced> Add Plug-in" etc.

You can switch columns by "Advanced setting> Column switching" on the blog management screen. For details, please refer to the man page "usage manual> blog> details setting> column switching".

Regarding customization, there is a detailed explanation in the usage manual, so please refer to the following.
"Usage Manual> Blog> Customize"

In that case, if you set the overall page width wider than the current one, you can prevent the collapse of the design.
For details, refer to the following page of the manual.
"User Manual> Blog> Customize> Overall> Layout> Page Width"

Templates can be saved in the blog management window "Environment Settings> Template Management".
For details, please see the following page of the manual.
"Usage Manual> Blog> Preferences> Template Management> Save My Template"