I need a multi-line header in the right page corner, with content right-aligned.

\setupheadertexts[nothing on left][line 1 \par line 2] doesn't work.

Is using a \vbox the correct method of handling this?
If so, how?

\setupheadertexts[nothing on left][\vbox{line 1 \blank line 2] puts the header in the left corner.

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david