Mline swap LSP routine

[joe_kohli]

So, I want to create a lsp that will do the following: do an Mline "Swap"

Essential, (in my attached dwg file) I want to basically select an Mline (for example the "0200 AQUA") and if I select the "0036 50% UREA" Mline, it will change it to "0220 AQUA". 

Initially, select the desired Mline that you want to use as your baseline and go find the Mline you want to convert. Once you select the Mline, it will change to match the initial selection. Now you have 2 Mlines that are showing EXACTLY the same. 

[АлексЮстасу]

Hi, Kent1Cooper

You have created a great opportunity!
For the general case, it would be good to add underscores:
'("_Top" "_Zero" "_Bottom").

Hi, joe_kohli

From old stock:
SETML - activate the desired style,
ML1 - replace the multiline style with the active one.