What is the Revenue Schedules feature in Vtiger CRM? What is the Revenue Schedules feature used for? What are the different statuses of the Revenue Schedules? What are the benefits of the Revenue Schedules feature in Vtiger CRM? In which editions of Vtiger CRM is the Revenue Schedules feature available? How do I install Revenue Schedules in Vtiger CRM? How do I enable the Revenue Schedules feature? How do I disable the Revenue Schedules feature? How do I enable or disable the Revenue Schedules feature from the Settings page? How do I enable or disable the Revenue Schedules feature from the Products module? How do I access the Revenue Schedules checkbox from the Services module? How do I access the Revenue Schedules checkbox from the Revenue Schedules module? How do I add Revenue Schedules information while creating a product? How do I add Revenue Schedules information while creating a Service? How do I add Revenue Schedules information while creating a Deal? What is a Construction add-on? What are the components of the Construction add-on? What is the Site Survey module? What are the actions available in the Site Survey module? What is the Labour module? What are the actions available in the Labour module? What are the benefits of the Construction add-on? What is the process of generating a quote from a deal record? What is the feature availability of the construction add-on? Explain linking with an example. What is Product Stock Update? How does the Product Stock Update function in Vtiger CRM? What information does a Product Stock Update record capture? What is the feature availability of Product Stock Update in Vtiger CRM? How do I install the Product Stock Update add-on? How do I view the Stock Update record of a product? How do I adjust the stock manually? What are the benefits of the Product Stock Update feature in Vtiger CRM?