TYPO3 Core

The TCA control selectCheckBox has a "Toggle all" / "Revert selection" feature, which selects or unckecks all items in the list.

This "Toggle all" function does not trigger a form reload, if 'onChange' => 'reload' is set in TCA.

TCA example:

'fam_fa_thisismycustomfield' => [
            'displayCond' => 'USER:Motor\\Myext\\Utility\\TcaUtility->topicsDisplayCondition:topics:fam_fa',
            'onChange' => 'reload',
            'exclude' => true,
            'label' => 'LLL:EXT:myext/Resources/Private/Language/locallang_tx_ext_lang.xlf:fam_fa_thisismycustomfield,
            'config' => [
              'type' => 'select',
              'renderType' => 'selectCheckBox',
              // TODO https://forge.typo3.org/issues/83457
              'minitems' => '1',
              'items' => [
                ['LLL:EXT:myext/Resources/Private/Language/locallang_tx_ext_lang.xlf:fam_fa_thisismycustomfield.access', 'access'],
                ['LLL:EXT:myext/Resources/Private/Language/locallang_tx_ext_lang.xlf:fam_fa_thisismycustomfield.benefits', 'benefits'],
                ['LLL:EXT:myext/Resources/Private/Language/locallang_tx_ext_lang.xlf:fam_fa_thisismycustomfield.cash-benefits', 'cash-benefits'],
                ['LLL:EXT:myext/Resources/Private/Language/locallang_tx_ext_lang.xlf:fam_fa_thisismycustomfield.tax-benefits', 'tax-benefits'],
                ['others', 'others']
              ]
            ],
        ],