XS_BASICVIEW_WIDTH
Category in Advanced options dialog: Model views
Use this advanced option to define the width of the basic view
windows. Enter the width in pixels, for example,
570. The default value is 375.
This advanced option is user specific and the setting is saved in options.bin under the user folder, for example, in C:\Users\<user>\AppData\Local\Trimble\Tekla Structures\<version>\UserSettings. Restart Tekla Structures to activate the new value.