I must be missing something simple.
I have made a custom object, call it TestLog. If I click my TestLog object to see details, in the section "Buttons, Links, and Actions" I see eight items: Accept, Clone, Delete, Edit, List, New, TestLogs Tab, and View. Great!
The section "Page Layouts" has one item, "TestLog Layout". I click "Edit" and the enhanced page layout editor comes up. The section "Testlog Detail" has three standard buttons (Edit, Delete, Clone) and no custom buttons.
When I click "Buttons" in the upper pane, it lists those three (greyed-out) and also "Submit for Approval".
How can I make the "List" and "Testlogs Tab" action buttons part of the layout? Must I replace this standard layout with a VisualForce page?
Setup > Customize > Tabs
. Have you added a custom tab for your TestLog object? It sounds like you just want a tab so you can access your object through the UI and view lists and filters. If so, start with the custom tab.Setup > Create > Tabs