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Now we would like to place the sender information block in the
upper right area of the business letter. We will now no longer show
you complete screenshots each time, as you are already familiar with
several basic tools.
Create another text frame with the following coordinates: X 14cm, Y 4.5cm, W 6cm, H 4.5cm.

Assign a font size of 9pt to this text frame and enter your address data.
You will have to create another text ruler in order to get rid of the centered justification, similar to what you did in the sender address line.

Now your document should look similar to this:
