You are correct (and the manual has an error). You can put a list of pressures in the input, but only one temperature.
In practice, using a list of pressures is a bad idea, unless you really want to compute adsorption+desorption and examine hysteresis. The downside is that all simulations have to be run sequentially.
In practice, people develop scripts to submit batch-scripts to submit large number of jobs (for example: for various MOFs, various temperatures, various molecules, compute the isotherm over a pressure range).
An an inspiration, see the example scrips in the 'scripts' directory of the RASPA source.
You fill in the top-part, run the script and it will generate the input-files. A second script will read the data out of the output-files and put in a more useful format that can be used for plotting.