Does it have RGB and see through panel ?
I am unsure of what you mean of whether or not it has RGB. It comes with four SP140 RGB Elite fans, however, these may or may not be compatible with your radiators. Not to mention, with the amount of radiators you want, you would need to get a lot more fans anyway.
If you go with 120mm, 240mm, 360mm, or 480mm radiators, you will need to get an entirely new set of 120mm fans. For example, if you choose to run triple 360mm radiators (one in the front, one on the side, and one on-top), then you will need to pick up nine completely new 120mm fans as your SP140 RGB Elite fans that come with the case simply will not fit. In addition, if you want to fill out the rest of the case with fans, you could get an additional 120mm/140mm fan in the rear (if you choose to, you could just use one of the SP140 RGB Elite fans that come with the case).
If you go with 140mm, 280mm, or 420mm radiators, then you can use the SP140 RGB Elite fans. With the Corsair 7000X/7000D, you can run dual 420mm radiators (one in the front, and one on-top). However, you will still need to pickup an additional two additional SP140 RGB Elite fans as the case only comes with four. If you want to fill out the rest of the case with fans (rear and side), you could get one 120mm/140mm fan in the rear as well as four 120mm fans on the side.
Please note, if you use a high quantity of fans, you must also consider that the RGB hub / fan controller that comes with the case (Commander Core XT) only supports up to 6 fans. You will need to consider picking up additional controllers and/or fan splitters.
In regards to whether or not the case has a see through panel, well that is a very vague question. Both the 7000X and 7000D have a tempered glass side panel. The main difference between the two cases is that the 7000X has a tempered glass front and top panel, whereas the 7000D uses optimized steel front and top panels that increase the airflow of the case. In my opinion, the 7000X looks more aesthetically appealing (this is purely opinion based and you are allowed to formulate your own opinion), however, that is at the expense of reduced airflow.
This image depicts a 7000D (black version) on the left, as well as a 7000X (white version) on the right.