yes this is possible , create a playbook or a rule which is activated when that filed is not empty / has changed , figure the best condition for you.
then this rule or playbook can call a script that contains :
addArtifact(type, value, description)
where type should be "IP Address" and value is incident.proprties.affected_host (you custom filed api name)
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mohamad islam hamadieh
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