You can do it by set value multi="False" and key2="client_print_multi".

Set multi="False" in aeroo report record in report xml file like this:

<record model='ir.actions.report.xml' id='your_record_id'>
    ...
    ...
    <field name='multi' eval='False'/>
    ...
    ...
</record>

Then set client_print_multi like this:

<ir_set>
    ...
    ...
    <field eval="'client_print_multi'" name="key2"/>
    ...
    ...
</ir_set>

You can find some more things about Linking Action to Event.

Hi,

I am still looking for an answer :( Any idea ?

Thanks,