You cannot use sunpinyin for paging In Ubuntu.

You cannot use sunpinyin for paging In Ubuntu.

First, open the settings page of sunpinyin: Method 1: Run/usr/lib/ibus-sunpinyin/ibus-setup-sunpinyin on the terminal.
Method 2:
On the keyboard of the input method, click the keypad to select the preference.

Select always in the display language option

 
The sunpinyin language bar is displayed on the desktop (of course, you can change the position of the display language bar), and click Settings in the sunpinyin language bar.
Call up the settings page using one of the above two methods:
The tabs above are in the pinyin mode, shortcut keys, and general (this tab can be used to set the number of alternate words). For more information, select the second tab and shortcut keys.

 

Then select the first one in Page Flip (Flip) (use-and = to Flip the Page, follow the usage of sogou, of course, you can also choose another), OK!