How to avoid writing the command csvRead 2 times?

UI.Vision RPA HowTo
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1

Brief essence of the problem:
When I use the csvRead command 2 times, it allows me
to get each login from the csv file and paste it into the login input field. If I use only 1 csvRead at the beginning (before while_v2 command), then UI Vision writes the error “[error] Line 3: Internal variable “!CSVREADMAXROW” not supported”.

Question: how to avoid writing the csvRead command 2 times?
I use UI Vision version 6.2.6

There is a JSON code:

{
  "Name": "another",
  "CreationDate": "2023-11-28",
  "Commands": [
    {
      "Command": "store",
      "Target": "medium",
      "Value": "!replayspeed",
      "Description": ""
    },
    {
      "Command": "store",
      "Target": "2",
      "Value": "!csvreadlinenumber",
      "Description": ""
    },
    {
      "Command": "csvRead",
      "Target": "web_logins.csv",
      "Value": "",
      "Description": ""
    },
    {
      "Command": "while_v2",
      "Target": "${!CSVReadLineNumber} <= ${!CSVReadMaxRow}",
      "Value": "",
      "Description": ""
    },
    {
      "Command": "csvRead",
      "Target": "web_logins.csv",
      "Value": "",
      "Description": ""
    },
    {
      "Command": "echo",
      "Target": "${!COL1}",
      "Value": "#shownotification",
      "Description": ""
    },
    {
      "Command": "executeScript_Sandbox",
      "Target": "return Number(${!csvReadLineNumber})+1;",
      "Value": "!csvreadlinenumber",
      "Description": ""
    },
    {
      "Command": "end",
      "Target": "",
      "Value": "",
      "Description": ""
    }
  ]
}