Some minor issues encountered while learning Ansys

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I have been learning Ansys for only a short time, and I’ve encountered some issues during this learning process. I would appreciate it if those who are more experienced could help me solve these problems. Thank you. 1) During meshing, in order to make the model meet the requirements for mapped meshing, it is necessary to divide the model into smaller components. Skinning surfaces, which are smooth surfaces obtained through skinning, may be used for this purpose. My question is: does this skinned surface serve any other functions besides helping to divide the model? Furthermore, is the surface generated of the same nature as the surfaces contained in the model body? In other words, is the actually existing surface imaginary? Can it be deleted using delete area? 2) When looking at the example problems, it was noted that after the model is meshed, it is necessary to merge and compress the model information. What is the purpose of doing this? Is it necessary? 3) When meshing the opposite-body model, there is a sweeping method; does the surface source need to meet the relevant requirements for \"grid division based on opposite-side mapping\"? In other words, is it necessary to \"integrate\" the non-point sources into triangles or quadrilaterals? My understanding is that if a surface source is created through free meshing, it can have any irregular shape; whereas when using mapped meshing, the irregular surface needs to be \"transformed\" into triangles or quadrilaterals first, and then swept using a curve. Is this understanding correct? 4) How to view the loads applied to the model, so as to determine whether the loads are applied correctly before analysis, or for reference in the future. 5) The most troublesome issue is that when I need to repeatedly adjust the model dimensions (such as thickness) to ensure its safety, I have to delete the parts of the model related to the dimensions that need to be changed and rebuild the model from scratch; as a result, all subsequent operations such as meshing and loading must be done again. Is there any way to avoid this? 6) It suddenly occurred to me that the loaded load should be able to be deleted, right? Hehe, the questions are all childish, but they really annoy me. I hope everyone can help out; thank you so much! !