Bloomberg-overriding several securities

Hi.

I try to do a Bloomberg-override on a list of securities, and I try tings like:

[bonds,sec] = getdata(c,{'EI645690 Corp','EH959031 Corp'},{'YAS_BOND_PX', ... 'YAS_ZSPREAD'},{'YAS_BOND_PX'},{['95.0' '80.0']})

Unfortunatley withoug any success. How can i input a list of prices to override values for several securities?