How add a new person with Industry specific in Marketo Database? I want to add a new person with Finance industry. Is this possible?? and how to remove selected person from the smart list?
Also, How to use the snippet for multiple emails??
Not what you mean exactly?
If the Segmentation's Smart Lists use the standard Lead/Person field Industry, then that's the field you'd update to change your Segment.
Do you want to add new industry in your segmentation ? Also to remove specific leads from smart list you can add exclusion filters in your smart list as per below screenshots.