Partially specify column types without determining the number of columns

[student-sx]

If you are using a template, and you don't specify the coltypes, you don't have no know the number of columns, which is a great feature. It would be even better, if you could:

• specify the same column type for all columns in the table (without having to know the number of columns). I.e. something like \includespread[...,coltypes={all=r}]
• specify parts of the table (beginning and ending rows): for example \includespread[...,coltypes={rl|l|{rest=c}|cl}