Is there e Lisp or a command that RESETS all the multileader properties to the original style settings?? (like the dimension update command)Thanks in advance.

What do you mean by "original style settings"?  What are you trying to accomplish?
 
Dave.

If I change the size of the arrow or the text height or whatever properties of a single multileader, there is NO WAY to come back to its original properties. (based on the style of the multileader...)The Dims have the UPDATE command that resets the properties mantaining the value of the text.

No.  There is nothing like that for multileaders.  Here's what I suggest you do: 
 
Create a template (DWT) file that contains all of the multileader styles you want to use.  Then, either use that file to begin new drawings or Design Center or a Tool Palette to drag in styles when you need them. 
 
If you want to use different styles, whether they differ by arrowhead size, text size or type, or whatever, create unique styles.
 
Dave.

uhm.... I already use a template but that doe not solve the problem of the changing properties, and is simply a non sense do a style for any kind of m.leader change... this would create a huge list of styles with few objects in the draw.If the MATCHPROPS command would work properly for ALL the properties of the m.leader maybe the problem would be solved even without the update command.

If all you want to do is reset all of the mleader styles to one particular style then use QSELECT to grab every one of them in your drawing and use the Properties dialog to reassign their style.  And if this is something you do often make a macro out of the procedure.
 
Dave.

Give it a try... it does not work (at least in acad2010)- take a dwg with 2 different styles- draw 2 mleader (one mleader for each style)- only in one of them change the arrow size- select both and give to them the style you want......the arrow size will not reset to the original style but neither in the new style, ramaining to its changed dimension.Correct me if i'm wrong.

Works for me.  Try your own test with the attached example file.  If what you described doesn't work either (1) you're doing something wrong, or (2) you have a problem with your installation.Dave.uploads/20120413_114609_AnnoEx.dwg


heinsite2012-04-13 11:47:55

I was not enough clear...- take a dwg with 2 different styles- draw 2 mleader (one mleader for each style)- only in one of those leader change the arrow size from the properties (not in the style)- select both and give to them the style you wantCorrect me if i'm wrong. Giving a different style (between mleaders not modified) there is any problem in my PC too

You're correct if you change the properties this way.  Once you mess with the settings in the Properties palette you've overridden the style and you won't be able to get it back to a defined style again.  It would be better to change the arrowhead using a defined style type rather than the Properties palette.I find it hard to believe however that you have so many different arrowhead sizes that you can't do this simply by defining a few multileader styles.  I use primarily annotative mleaders, and the arrowhead is not something I change very often across different style definitions.  Other things yes.Dave.

In my template i've 6 or 7 different styles that are different by font, text height, text style, arrow type and all are annotative...I've some styles with circle as arrow type and I use them to enlight different zones of the drawing.. as you know that zones are not always the same and that's the matter about my issue with resetting the style...In a draw i could have 30/40 of different circles radius/size so you understand that is quite unconfortable making new styles for every diameter.

That truly seems excessive.  Seems like the answer would be a Dynamic Block where the size of the arrowhead is changed relative to the diameter of the circle.

+1 on the Dynamic Block idea.  With that many conditions and options it sounds like a perfect candidate for a DB with visibility states.
 
Dave.

Are you talking about a Dblock as arrow??? (let's try)Or about a brand new Dblock with all that option i wrote above??

A brand new dynamic block is what we're suggesting.  If you don't want to use styles for this then a DB is another answer.
 
Draw one block with 3 or more of the conditions you would like to set to get started.  Make them all on top of each other but with discrete elements/objects.  Then create visibility states so that only the correct things show.  You can have as many as you want, certainly 30 different conditions.  You can always build more states once you get going.  For something complex like this you might need to experiment with methods of building the block most efficiently.  I would draw each condition separately and then pull it in and set the state... but that's your choice.
 
AutoCAD Help uses a welding symbol dynamic block example to illustrate the concept of visibility states.  My impression of what you'll be doing seems very similar.
 
Have fun! 
Daveheinsite2012-04-17 22:06:39