Nice additions.
Below something I forgot I have (update of older works).
Akaflieg München Mü-13 Atalante (Germany, France, Lithuania, Poland)
DFS Kranich (Germany, Austria, China, Finland, Great Britain, Hungary, Netherlands, Poland, Spain, Switzerland, Yugoslavia)
AB-Flygplan Se.103 (Sweden)
Mraz VT-52 Jerab (Czechoslovakia)
DFS Olympia Meise (Germany, Czechoslovakia, Finland, Great Britain, Norway, Poland, Sweden, Switzerland)
VEB-Lommatzsch Meise (East Germany)
Nord N.2000 (France)
EoN Olympia (Great Britain)
DFS Rhonbussard (Germany, Argentina, Austria, France, Poland)
DFS Weihe (Germany, Czechoslovakia, Finland, Poland, Spain, Switzerland, Yugoslavia)
AB-Flygindustri Se.104 (Sweden)
Minie VMA.200 Milan (France)
Göppingen Gö-3 Minimoa (Germany, Argentina, Czechoslovakia, Great Britain, Netherlands, Poland, Switzerland)
Göppingen Gö-4 Gövier (Germany, Austria, Czechoslovakia, Netherlands, Poland)
Schneider SG-38 Schulgleiter (Germany, Austria, Belgium, Czechoslovakia, Denmark, Finland, France, Latvia, Poland, Slovakia, Spain)
VEB-Gotha SG-38 Schulgleiter (East Germany)
AB-Flygindustri G.101 (Sweden)
EoN Eton (Great Britain)
Slingsby T.38 Grasshopper (Great Britain)
Schneider Motor Baby (Germany, Hungary, Poland)