How do I get Task Pane to appear in the View tab?

I need to change the font size in the footer in Impress and from reading this website I need task pane activated to do that. Unfortunately, there is no task pane option to activate in the View tab. How do I get task pane to appear? I am using version of LibreOffice, KDE Ubuntu.

To change the font for the footer do the following:

View > Master > Slide Master > select Footer area > Format > Character and set the font you need.

I recommend to have a look at the free guides, which you can download from