sorry for delay in follow-up.
I see payment type in the admin_language.php file:
// 17 language strings from view currencyamounts / label view name=
'Filter payments based on payment currency' => '!Filter payments based on payment currency',
'--- currency ---' => '!--- currency ---',
'Gross amount' => '!Gross amount',
'Filter payments based on payment amount' => '!Filter payments based on payment amount',
'--- gross amount ---' => '!--- gross amount ---',
'Gateway account' => '!Gateway account',
'Filter payments by payment gateway account' => '!Filter payments by payment gateway account',
'--- gateway account ---' => '!--- gateway account ---',
'Payment using' => '!Payment using',
'Filter payments using payment method' => '!Filter payments using payment method',
'--- payment using ---' => '!--- payment using ---',
'Payment type' => '!Payment type',
'Filter payments using payment type' => '!Filter payments using payment type',