I can't find in my account where are "Fixed Asset Item List" to add my fixed asset. In which menu it supposed to be?

Welcome to the Community forum, Andrej. I have here some details to share about your Fixed Asset query.

In QuickBooks Online (QBO), you can see the list of your Fixed Asset Items in the Chart of Accounts. Let me guide you through the steps:
 

1. In your QBO account, go to the Accounting tab, then select Chart of accounts.
   
   
   
    
2. On the Chart of accounts page, locate the list of your Fixed Assets or search the account name on the search box.
   
   

Alternatively, let me guide you through the steps on how to add a new item to your Fixed Assets account:
 

1. In the Chart of accounts page, click on New.
   
   
    
2. From the Account Type drop-down arrow, choose Fixed Asset or Other Assets.
3. In the Detail Type drop-down arrow, select the option that nearly describes the asset.
4. Enter the account name.
   
   
    
5. You can also tick the Track depreciation of this asset checkbox if you want to track it.
   
   
    
6. Once ready, click on Save and Close.

For detailed steps, kindly visit: Add an account to your chart of accounts in QuickBooks Online.

Moreover, I'll also share this article which can serve as your reference to learn how to record depreciation in QBO: Depreciate assets in QuickBooks Online.

Feel free to leave a reply if you have additional QuickBooks-related queries. The Community team always has your back. Have a good one.