How can I edit the object property using widchar

How can I edit the property of a n object using reg exp in katalon object repository

For example below is the text value

              Apple iPad with WiFi (2018 Model) (**128** GB, Gold)  

but value ‘128’ is dynamic here

I tried to change the property by editing the object repository as follow.But fails.please help.Please not only one product which meets the below reg exp in the page

              Apple iPad with WiFi (2018 Model) (**.*** GB, Gold)

But the recognition fails as below.Please help

thanks resolved on replacing equals with matching regexp