CorelDraw .cdr in Draw

I have imported a .cdr file that I created in CorelDraw a long time ago. It was of a boat layout and had several pages and layers.
I had 4 pages.
Draw has opened the 4 pages correctly, but I’m having problems with layers on page 1.
For example on page 1 the hull frames in CDRW were shown as a set of 44 vertical lines, on one layer and the internal layout on another layer.
I’ve now got 3 layers when I open in .odg - Layout, Controls and Dimension Lines. All 3 are the same and when I edit the Layout layer, the edits are on the other 2 layers.
So, I’ve created another layer called Frames and it has all the objects as on the other 3 layers. If I delete everything from the new layer, everything disappears from the other layers.
If I hide the 3 original layers, objects still get deleted.
I’ve tried to select all 44 numbered vertical frame lines but holding shift down and dragging a box over one end of all the lines. If I drag a box over all the lines, I’ll select everything on the layout.

I did the same thing in CDRW with wiring - I had each circuit on a different layer so I could easily see which wire I was playing with.

So, a little stymied to get objects on a separate layer.

You can see at the status bar in which layer the selected object is.
imagen
If do you cut, and paste while another layer is selected, the object is pasted in the new layer.
imagen
By hiding a layer, the objects in it will hide.
imagen