dutchshader

Hint:

And this is just one category

Apply this to a object right click on the object and create style. It wil be saved in the styles panel

looks like the triangle has no fill color, it should have a fill color to use it as a mask

could be you have protect alpha ticked in the brush settings

You can test it with the file posted in this topic
 

When i make cut files for a cameo silouette the file has to be made in 72 dpi and on export i have to untick " set viewbox" this way the file has the right dimensions.

View clip to canvas, i believe it is / on the keyboard

View clip to canvas, i believe it is / on the keyboard

That’s clipping or nesting, where the rest of the shape remains visible. To crop or mask an item, you need to drag the shape and drop it onto the thumbnail of the target layer: the shape will disappear if you’ve done it correctly.

Nooit verwacht dat het idee voor een hyperlink al uit mijn geboortejaar 1965 komt, weer een top blog.

Then you would have an Image layer with a part of it (on a new layer being a raster layer) that has to be more awkward to work with than just using one type of layer for the same image
Why not just make your selection on the image layer (duplicated or not as required) and then hit the mask button in the Layers panel, that way everything remains as image layers

To change targeting behaviour:
From the Toolbar, choose one of the following:Insert behind the selection Insert at the top of the layer Insert inside the selection  

try this
:

try this
:

Three Part Image 3600 x 600m
All vector object compilation build from 4 embedded file layers 
AD 1.7.1  tested in Publisher at 3600 x 600mm spread

Camouflage: Part I
Left Section 
1200 x 600 mm 300dpi (3600 x 600mm spread)
Raster image uploaded at:4960 x 2480

Camouflage: Part II
Centre Section
Version 2.0: 1200 x 600 mm 300dpi
Raster image uploaded at:4960 x 2480

 
Camouflage: Part III
Right Section
Version 2.0: 1200 x 600 mm 300dpi 
Raster image uploaded at:4960 x 2480
 

Camouflage: Full image
Three combined images
Version 2.0: 3600 x 600 mm HQ jpeg (0.15 scale)
 

A quick effort with Affinity Designer.

Hello @robjenko, and welcome to the forum.
The answer to your question is that this is not possible jet in designer, but it is on the roadmap.

From the online help file:
Importing text from a file lets you introduce already existing text into your publication.
Typically text is placed into a chosen text frame but you can also import text as artistic text or path text.
Affinity Publisher can import text files in Microsoft Word (.docx), Rich Text Format (.rtf) and plain text formats (.txt).
To import text into an empty text frame: With the Frame Text Tool active, do one of the following: From the File menu, select Place. In the pop-up dialog, navigate to and select a file, and click Open. Drag and drop the file from a folder on your operating system onto the text frame. Paste (V) previously copied text from Microsoft Word, Adobe InDesign or other text source. -click the text frame, and select Paste. Selecting multiple text files to import will load the text files into the Place Images panel. From here, you can drop the files onto a new text frame as you hover over the frame.
 To import a text file's contents into a populated text frame at a specific location: Select the Frame Text Tool. Click at a chosen text position to make an insertion point. From the File menu, select Place as described previously.  To replace all frame text in a text frame with a text file's contents: Select the Move Tool. Select the text frame, ensuring that you don't double-click it (making an insertion point). From the File menu, select Place as previously. To import text as artistic text or path text: From the artistic or path text's insertion point, select File>Place. SEE ALSO:
Working with text Frame text Linking text frames Artistic text Text on a path

Guess you hit G on your keyboard, that is view>hide glasses 

Just drag it out

Right click on the layer you want to copy from, and click rasterize.
Should work now

Guess you hit G on your keyboard, that is view>hide glasses 

Guess you hit G on your keyboard, that is view>hide glasses