public function getAll($bOnlySelectable = false)
    {
        $aOut = [];

        foreach ($this->aAvailable as $oType) {
            $sClassName = $oType->slug;
            if (!$bOnlySelectable || $sClassName::IS_SELECTABLE) {
                $aOut[] = $oType;
            }
        }

        return $aOut;
    }