Just to confirm this is exactly what your are looking for, do you have several write to table integrations and you only want them to run one after one after another in succession, waiting for the previous to finish before moving on to the next. If so, then a conditional formula can be used to make it that each write to table will wait for the previous one to finish running before starting to run on it own.
Also could you post a link to the table where you are working on this so that we can take a look.