Unable to pin ("Add to favourites") icon to applications bar

[Patryk "LeadMan" Benderz]

1)
Description: Ubuntu 17.10
Release: 17.10

2)
patben@patben-amd:/var/log/apt$ apt-cache policy glabels
glabels:
  Zainstalowana: 3.4.0-2build1
  Kandydująca: 3.4.0-2build1
  Tabela wersji:
 *** 3.4.0-2build1 500
        500 http://pl.archive.ubuntu.com/ubuntu artful/universe amd64 Packages
        100 /var/lib/dpkg/status

3a) I expect to see "glabels" icon
3b) I expect to be able to pin glabels icon to facvourites

4) None of the above is possible

5) Gnone 3.26
tested with Ubuntu Gnome customisations and with Ubuntu customisations disabled.

6) See attached screenshot.