From version 1.10 onwards you get a unified transaction view with transactions from all your accounts ('All transactions').

To exclude accounts from the refresh, please follow these steps:

iOS:

• Click on 'All transactions' to open the unified transaction view
• Tap on the filter symbol above the transaction list
• Click on accounts or account groups to select the accounts/groups you want to include in the total sum
• if you refresh your accounts now (pull down in the list of transactions in 'All Transactions'), only the selected acocunts will be refreshed

macOS:

• Click on 'All transactions' to open the unified transaction view
• Tap on the filter symbol below the search field
• Click on accounts or account groups to select the accounts/groups you want to include in refresh of accounts 
• if you refresh your accounts now (click on the refresh button in 'All Transactions'), only the selected acocunts will be refreshed