Yes, you can create an embedded data (LinkPart) and before every block update the value of that embedded data.
So the link would be like - www.example.com/images/${e://Field/LinkPart}_smile.jpg

Thanks for you quick response!

Can you show me an example? I am a bit confused to do that.
Im just startin to learn qualtrics.

Kind Regards
Markus

Create an embedded data 'LinkPart' at start of the survey flow and assign 'Cell_1' value to it, which is value of block 1 URL.
All the links in question of all the blocks will be same as below except _smile, _Question, etc. would be different in different questions:
 www.example.com/images/${e://Field/LinkPart}_smile.jpg
Now, before block 2 add an embedded data element and update "LinkPart" value to "Cell_2", similarly before the other blocks also, update the value of LinkPart embedded data to respective value.

Hi rondev,
that was easy, thank you so much!

Possible to make a preview in block view or in editor, too? i cant see the image. i know i dont get a variable to see. in Full preview it works fine, but i would be nice to see the image in editor, too.
Do you know a techniq to use variables in Heatmap question types, too?

ah Heatmaps are not really important. But maybe you could help me for a other problem, too...

Does it possible to align the elements from left to right instead top to down?
And if i put a element into a group, it would be better if the elements arrange side by side and not stacking.