I use journals frequently and it would be more convenient than opening Chart of Accounts-Activities-Make General Journal
You can add the majority of functions to the icon bar. The first way is to right-click the icon bar and add a predefined function from the list. Click Add > select the function you require > select the icon > click OK
The second and easiest way is to open the function you want to add, in this case a journal, then go to View > Add "this function" to Icon Bar...