Explanation
Split views are a feature that allows users to view records as a split list on object home pages in Lightning Experience apps that use console navigation. Split views show records in two panes: a list view pane on the left and a record detail pane on the right. Users can switch between different list views and records without losing context or scrolling. However, split views are only available on standard objects such as accounts, contacts, leads, opportunities, cases, etc., and not on custom objects such as shipments. References:
https://help.salesforce.com/s/articleView?id=sf.lex_split_view.htm&type=5

Explanation
Big Deal Alerts are notifications that are sent to users when an opportunity reaches a certain amount, probability, or stage. They can be configured by administrators to alert sales reps or managers when they have a high likelihood of winning a big deal. Key Deals are a feature of Einstein Opportunity Scoring that shows the top opportunities based on their score and stage, but they do not send notifications. Activity Timeline is a component of Lightning Experience that shows the past and upcoming activities related to a record, but it does not notify users of big deals. Performance chart is a type of report chart that shows how well users or teams are performing against their goals, but it does not alert users of big deals. References:
https://help.salesforce.com/s/articleView?id=sf.forecasts3_big_deal.htm&type=5

Explanation
Case escalation rules are used to escalate cases that have not been resolved within a certain time frame by changing the case owner, sending email notifications, or triggering workflow actions. You can use these actions to alert the appropriate users or groups when a case needs urgent attention or escalation. References:
https://help.salesforce.com/s/articleView?id=sf.customize_caseesc.htm&type=5

Explanation
Path is a feature that can be used to visually see the sales stages on an opportunity page. Path can include guidance and key fields for each stage to help users move opportunities along the sales process. Guidance can provide tips, policy information, or best practices for each stage. Key fields can display important fields that users need to fill in or update for each stage. References:
https://help.salesforce.com/s/articleView?id=sf.path_overview.htm&type=5

Explanation
Dependent picklist and global picklist are two options that can be used to meet this requirement. Dependent picklist allows users to create a conditional relationship between two picklist fields, where the available values in one field depend on the value selected in another field. Global picklist allows users to create a set of picklist values that can be shared across multiple fields and objects, ensuring consistent values and reducing maintenance. References:
https://help.salesforce.com/s/articleView?id=sf.fields_about_dependent_picklists.htm&type=5
https://help.salesforce.com/s/articleView?id=sf.picklist_global_picklists.htm&type=5