Hi Evolve,

Unfortunately, our plugin doesn't support bulk edit, the timers must be manually set for individual products. 

I will transfer your ticket to one of our developers to see if he can give you any workaround for this.

Please be patient waiting for his response.

Best regards.

Hi Evolve,

You can use the custom code, please add this code to current-theme (or child-theme)/ functions.php

add_filter( 'woocommerce_is_purchasable', 'your_woocommerce_is_purchasable', 9, 2 );
function your_woocommerce_is_purchasable( $purchasable, $product ) {
    return false;
}

It will set all products are unpurchasable by default, then you can work with the timer for each product.

If you want to set hidden for all products, please use below code:

add_filter( 'woocommerce_product_is_visible', 'your_woocommerce_product_is_visible', 9, 2 );
function your_woocommerce_product_is_visible( $visible, $product_id ) {
    return false;
}