Commands to enable and disable trash for Dash to Dock:
Enable:
gsettings set org.gnome.shell.extensions.dash-to-dock show-trash true
Disable:
gsettings set org.gnome.shell.extensions.dash-to-dock show-trash false
Commands to enable and disable trash for Dash to Dock:
Enable:
gsettings set org.gnome.shell.extensions.dash-to-dock show-trash true
Disable:
gsettings set org.gnome.shell.extensions.dash-to-dock show-trash false