Cannot add (draw) new controls to tiles or pages in designer

The designer seems to ignore adding controls of any sort from grids to icons to images to buttons and I cannot see why. I have a current design with a tabbed page containing several content pages fro rooms. Most rooms have a device browser and one or more specific device tiles or info boxes - labels and the like. It functions well as far as it goes. Trying to extend the design is like wading through treacle…

I can select any layer in the outline. When I click on a new control - the cross hairs appear but I cannot draw anything on any area in a page or a tile. The cross hairs move around but no contrll appears. It sometimes works but mostly doesn’t and I cant see what the difference is between an example that works and one that doesn’t.

I think maybe it is down to what is already there in the stack of items but can’t seem to work out why I cannot add (draw) other items. Please can someone tell me what is going on or give me some pointers to find out?

If you can’t interact with the UI elements when wanting to draw a new one, it is more than possible, that you have some elements in the way…like if you have rectangles, or images or wathever, over the canvas, and they are blocking you.

Try to hide all elements in design mode, and just keep trying to draw the new one,…

SOLVED - thanks. I had trying making them invisiblw (run mode Isenabled isvisible etc?) Didn;t know about the visible option as per screen shot. Unticked that and I can now add anything I need.

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