Yup, as the others have described the process is easy.
• When unhitched the TV is level and the TT is level on the tongue jack.
• You drop the TT on the ball and the TV sags in the back.
• This takes the weight off the front axle and makes for poor braking and a steering.
• You adjust the tension bars to shift the weight forward to the front axle again so the TV and the TT sit level again. Some weight is also transferred back to the TT.
• This returns the steering and braking to the front axle.
You can see that as you add or subtract weight to the TT and TV the amount of bar tension required to get to level changes so you must add or subtract links in the bar tension chain. I had to change one or two links from what my dealer set when the TT was empty.
As always there are other subtle variables involved. Since you added weight to the TV it will sit lower than when it was unhitch even though some of the weight was transferred forward. Unless you are on level concrete, exact measurements are hard to get, but over all you want the TV and TT to sit fairly level.