Copy an entry between two tellico files

[cmiramon at kde-france.org]

Hello,

It must be a stupid question but how do you copy entries from one tellico
database to another ? I've tried to open Tellico with
myfirstbibliography.bc and a second instance of tellico with
mysecondbibliography.bc and drag&drop between the two windows but it does
not work.

The only solution I found is exporting the selected entries to bibtex and
importing them in the second bibliography. 

PS : I'm still using 1.1.6.

Cheers,
Charles