onActionProcess.js

import("system.vars");
import("system.neon");

neon.openContext("CampaignStep", "CampaignStepEdit_view", null, neon.OPERATINGSTATE_NEW, {
    campaignId_param: vars.get("$param.campaignId_param"),
    predecessorstepId_param: vars.get("$field.CAMPAIGNSTEPID")
});