Add icons/menu items for applications in XFCE

I am running Debian (Stretch) with XFCE and many applications do not appear in the menu (in my case Whisker Menu). As an example, I often run remote sessions using VNC and at the moment I can only start the VNC viewer from the terminal. Ideally it would have an icon/item so that not only it would be visible in the menu, but I could also select it as a 'favourite' (easy-to-reach) item in the Whisker Menu. Sticking with the example case, the VNC viewer is from an 'official' package: $ sudo apt --reinstall install tigervnc-viewer Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 1 not upgraded. Need to get 168 kB of archives. After this operation, 0 B of additional disk space will be used. Get:1 http://mirrorservice.org/sites/ftp.debian.org/debian stretch/main amd64 tigervnc-viewer amd64 1.7.0+dfsg-7 [168 kB] Fetched 168 kB in 0s (642 kB/s) (Reading database ... 669847 files and directories currently installed.) Preparing to unpack .../tigervnc-viewer_1.7.0+dfsg-7_amd64.deb ... Unpacking tigervnc-viewer (1.7.0+dfsg-7) over (1.7.0+dfsg-7) ... Processing triggers for man-db (2.7.6.1-2) ... Setting up tigervnc-viewer (1.7.0+dfsg-7) ... so is there a way to have it as an 'official' application in the Whisker Menu?