can some one tell me how to change all drawing text with one command????????????????i forgot the commanduse of command is changing text size in whole drawing with just 1 commandso please tell me that command....

Not sure that ALL texts will change but you can change the text style/size with the STYLE command.

Define a text Style with a fixed [non-zero] height.  If you change the height assigned to an existing Style, it will not automatically update the height of already-existing Text objects.  But you can select all Text objects with something like QSELECT or FILTER, or by windowing everything, and in the Properties object-type entry, pulling down the list and choosing Text objects only.  Then in the Properties palette's Style slot, select any Style other than the one with the fixed height you want, and then get in there again and select the Style you want.  That will assign that Style, and its defined height, to all selected Text objects. If you also mean to do the same with Mtext, you will need to do that same operation again with an Mtext-only selection.  But if any of the Mtext objects have any internal formatting that changed the height of any part(s) of it, that will not be overcome by this approach -- you will need to either get into each one and eliminate its override formatting, or use something like STRIPMTEXT (a free routine you can Search for). If you have Styles with different fonts assigned, that approach will change them all to the same font.  If that's not wanted, and if the Styles do not have fixed heights, you can select all Text, or all Mtext, and give all of them the same height in the Properties palette.  If they do have fixed heights, you can give each Style the new height, and do the approach above, but using QSELECT or FILTER to select only those of a particular Style, and do each Style separately.
Kent Cooper2019-02-05 15:04:30