Firstly, about missing Telerik
menu, we would need an additional installation information about your Visual Studio installations. This will help us to determine the status of the installation process.
You can gather this by following these steps:
1. Open Visual Studio and open the "Help"
-> "About Visual Studio"
2. Use the "Copy Info"
button to place the installation information in the clipboard;
3. Paste the information into a text file, save it and attach it to your reply here or in a new support ticket.
For your convenience, please refer to the linked screen shot - https://www.screencast.com/t/yAsV730tvQXI
As of missing Telerik Reporting item templates, you might need to check this KB article - Telerik Reporting Item Template is missing
Also, test the following steps from my colleague's answer on the same topic - Telerik Reporting Item Template is missing
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items