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Sorry, I know "sometimes" is very poor...<BR>
I find some differences now:<BR>
<BR>
1.- create an instance of Curve <FONT COLOR="#000000">(</FONT>B<FONT COLOR="#000000">asic categorie</FONT> at Object Catalog)<BR>
2.- <I>Halo > Menu > Show handles</I> with it<BR>
3.- open its Viewer and look for "vertices", you'll find:<BR>
<I><FONT COLOR="#000000">remove all vertices but cursor</FONT></I><BR>
Run this command once <BR>
then <FONT COLOR="#000000"> I get an </FONT>E<FONT COLOR="#000000">valuationError </FONT><BR>
<BR>
1.- create an instance of Curve <FONT COLOR="#000000">(</FONT>B<FONT COLOR="#000000">asic categorie</FONT> at Object Catalog)<BR>
2.- open its Viewer and look for "vertices", you'll find also:<BR>
<I><FONT COLOR="#000000">remove all vertices but cursor</FONT></I><BR>
Run this command once <BR>
3.- now that you have a black point, get (complicated without easySelection ON, perhaps easySelection could have a keyboard shortcut) its Halo and <I>c</I>lic <I>o</I>n<I> Menu > Show handles</I><BR>
4.- look for: <I><FONT COLOR="#000000">remove all vertices but cursor</FONT></I><I> </I>and run this command once <BR>
then <FONT COLOR="#000000"> I get an P</FONT>reDebugWindow<FONT COLOR="#000000"> </FONT><BR>
<BR>
1.- create an instance of Curve <FONT COLOR="#000000">(</FONT>B<FONT COLOR="#000000">asic categorie</FONT> at Object Catalog)<BR>
2.- <I>Halo > Menu > Show handles</I> with it<BR>
3.- open its Viewer and look for "vertices", you'll find also:<BR>
<I><FONT COLOR="#000000">remove all vertices but cursor</FONT></I><BR>
Run this command once <BR>
4.- now that you have a blue circle and a orange triangle, clic on the triangle: <FONT COLOR="#000000">O</FONT>rderedCollection <FONT COLOR="#000000">e</FONT>rror<FONT COLOR="#000000"> </FONT><BR>
or try to move the object from the blue circle: <FONT COLOR="#000000">O</FONT>rderedCollection <FONT COLOR="#000000">e</FONT>rror<FONT COLOR="#000000"> </FONT><BR>
<BR>
regards<BR>
<BR>
<BR>
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