[Feature request]: Merge cells in lines

[CodeDoctorDE]

Is your feature request related to a problem? Please describe

On solitaire you need to see the other cards behind the top cards

Describe your feature request!

Add a "Merge cells" system. Only allowed are lines.

The merge option can be set to:

• Fill (Fill the variable space)
• Stacking (Stack one by one)

Then we need to have an option how many max. it will display/how much of the cards should be shown

Additional context

No response

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