:MARKer:X1Y1source
:MARKer:X1Y1source <source>
:MARKer:X1Y1source?
<source>
string
CHANnel<n> FUNCtion MATH FFT WMEMory<r> EXTernal
Sets the source for the X1 and Y1 cursors.
Set and query the source for the X1 and Y1 cursors.
<return_value> where <return_value> ::= <source>
Replaced invalid entry with duplicate