This command must be used with at least one feature.
Use this command to merge features and assign feature property values for resulting features.
When you merge features, the resulting feature property values are determined by rules you specify in the Split and Merge Rules dialog box.
Respond to the prompts:
Select at least two objects to merge, one of which must be a feature. Press ENTER when you are done selecting the feature or features you want to merge.
Specify whether you want to select the feature that has the feature ID you want to use or you want to create a new feature ID.
Select the feature that has the ID to use for the merged feature.
Create a new feature ID for the merged feature.