2 supplementary icons in LO 5.0 Writer sidebar?

In LibreOffice 5.0 I sometimes have 2 supplementary icons in the sidebar (the
two last one in the bottom) under the navigator icon. The screenshot below
shows this behavior (using Breeze icons set). These icons are not present in
a new installation (no previous 4.0 installation).

Having the "Recording changes" function is a plus but the "Draft" function
is strange and I can't find a way to use it...

1. Is there a way to "show" these 2 icons (or at least the "Recording
changes" one? Maybe using the advanced options?

2. Is it because of the profile still numbered "4" that probably imports
your old 4.x profile in 5.0?

If I change the last line of /opt/libreoffice5.0/program/bootstraprc from

UserInstallation=$SYSUSERCONFIG/libreoffice/4
to
UserInstallation=$SYSUSERCONFIG/libreoffice/5

then the 2 supplementary icons disaperead.

Raymond

screenshot (LO 5.0.0.5) showing in Writer sidebar 2 supplementary icons:

<http://nabble.documentfoundation.org/file/n4156961/LO_Writer_5.png>

Hum, I'm answering to myself :wink: !

Activating "Experimental functions" in LibreOffice Options adds the two
icons in the side panel.

To hide the Draft icon I unchecked "Experimental functions" in advanced
settings and using "Advanced settings" button I look (search) for
"isexperimental". I then give a false value to the DesignDeck.

Raymond