We have already seen, how the marking menu works in Inventor 2012 (See Here) Now let’s see how we can customize the Marking Menu to help users enhance productivity.
Marking Menu can be obtained when a user right clicks on the graphics area. Now in order to customize the marking menu, we need to click on Tools Ribbon > Customize Button > from the Option Tab > Now click on Marking Menu Tab as shown below
Once you open the options panel, select the environment you want to customize and also select the sub – environment. Now click on the Command you want to change., see above image, the Line command has been selected, now go ahead and type the command, you want to add or search or click on the command. You will notice the command from line changes to the required command you have chosen.
Further you can customize the appearance in three ways SHOW TEXT ONLY | SHOW ICON AND TEXT | SHOW ICON ONLY
Note: You can toggle between Classic Context Menu to Marking Menu by clicking on the Use Classic Context Menu Option given below
Customizing Inventor is easy only @ CADProfessor 
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