Taking the second part first, have a look here where it states that a named anchor is illegal Links in HTML documents.
As far as the first one is concerned, an AP-element or, in better terms an absolute positioned element, has run out of favour as a way to produce a basic layout. It is too difficult to control especially in the current era of responsive web design.
Having said that, if you are designing a board game, like chess, absolute positioning is a godsend. You can then use CSS to add position: absolute to the element, this gives the same effect as an AP-element.
Thank you for your answer.
But what I don't understand is why the tutorial (see https://helpx.adobe.com/dreamweaver/using/dreamweaver-workflow-workspace.html#insert_panel _overview) explains the working of an Insert panel which I don't have in that structure in my Trial version (NL).
Background:I made and keep up to date 6 websites in DW MX 2004. I'm using 'layers' and 'back to the top' anchors and all sorts of tools from the Insert panel. Since this software is apparently not compatible with Win 10, I have to move to DW CC 2015...
You'll find its replacement under the HTML tab. I don't understand why Adobe has shown the panel in the tutorial, it's from an older version of DW.
There have been many changes to DW since CS6 came out in 2012. Often people read tutorials that were written for that version and don't understand that it's no longer relevant for DW CC. Below are links which detail the changes in each version.
The deprecated features list:
New Features in CS6 12.2
New Features in CC 13.0
New Features in CC 13.1
New Features in CC 13.2
New Features in CC 2014 June Release
New Features in CC 2014.1 October & February Releases
New Features in CC 2015 Release
Many things you could do easily in MX 2004 are outdated by current web standards. We no longer use named anchors. While most browsers still support named anchors it's unclear for how long this will last. Going forward, you should be using IDs instead.
APDivs (layers) were never a good idea in primary layouts. Adobe saw fit to remove them from the Insert Panel several versions ago.