I become not clear about Athena Command line, if it can be done there for example a spread.

I did to plots with this commands in command line:
+.LINE,data=xe@DX\.1
+.LINE,data=xe@MDA\.1

So i have in Athena
data1(xe@DX.1)
data2(xe@MDAX.1)

How can i do a spread? This dont work:
+.(data1)-(data2)
or this
+.LINE,data=(data1)-(data2)

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New with QuoteCenter & MetaStock
English ist not my native language