How to give continuous velocity in fluid scenario creation?

I was trying to simulate a tank which is continuously moving with some velocity, but i found only the option of giving initial velocity as shown in video, how do i give continuous velocity to the tank ?

Edu ​​​​​​​3DEXPERIENCE ​​​​​​​SIMULIA ​​​​​​​Fluid Scenario Creation ​​​​​​​